organize: look what we are missing when assigning suffix... make it mandatory to detect early?

ATM there is a number of dandisets which have no `_suffix`es in the filenames, which I assume come from `dandi organize` (didn't check/validate).

Here is stats on suffixes we have ATM
Overall across all

```shell
dandi@drogon:/mnt/backup/dandi/dandisets$ for d in 0*; do find $d -iname sub*_*.nwb | sed -e 's,.*_,,g' -e 's,\.nwb$,,g' | grep -v - | sort ; done | sort | uniq -c | sort -n -r
38219 ophys
11108 icephys
8459 image
6958 behavior+image
6306 ecephys
4012 behavior
3467 image+ophys
2205 behavior+ecephys
2010 behavior+image+ophys
1612 behavior+ophys
1440 behavior+image+ogen
843 ecephys+ogen
404 behavior+ecephys+ogen
404 behavior+ecephys+image
253 ecephys+image
230 behavior+image+ogen+ophys
187 behavior+icephys+ogen
125 behavior+task
124 spikesorting
106 icephys+image
74 behavior+ecephys+image+ogen
40 ogen
32 behavior+icephys
26 ecephys+ophys
2 ecephys+icephys
```

Detailed per dandiset which has them:

```shell
> $ for d in 0*; do dts=$(find $d -iname sub*_*.nwb | sed -e 's,.*_,,g' -e 's,\.nwb$,,g' | grep -v - | sort | uniq -c); [ -z "$dts" ] && continue; echo -e "$d:\n$dts"; done
000003:
97 behavior+ecephys
4 ecephys
000004:
87 ecephys+image
000005:
18 behavior+ecephys
9 behavior+icephys
121 behavior+icephys+ogen
000008:
1328 icephys
000009:
36 behavior+icephys+ogen
21 ecephys
116 ecephys+ogen
000010:
14 behavior+ecephys
85 behavior+ecephys+ogen
59 behavior+ophys
000011:
1 behavior
91 behavior+ecephys+ogen
000012:
297 icephys
000013:
22 behavior+icephys
30 behavior+icephys+ogen
000020:
4435 icephys
000021:
182 ecephys
000022:
143 ecephys
000023:
318 icephys
000028:
2 ecephys
000029:
3 behavior+ecephys
000034:
4 ecephys
000035:
185 icephys
000036:
57 behavior+image+ophys
000037:
100 behavior+image+ophys
50 behavior+ophys
000039:
100 behavior+ophys
000041:
22 ecephys
000043:
94 icephys
000044:
8 behavior+ecephys
000045:
595 behavior
182 behavior+ecephys
5822 behavior+image
11 image
000048:
1 ecephys+ophys
000049:
78 behavior+ophys
000050:
56 behavior+ophys
000053:
339 behavior
20 behavior+ecephys
000054:
79 behavior+ophys
6 ophys
000055:
55 behavior+ecephys
000056:
40 behavior+ecephys
000059:
50 behavior+ecephys
50 ecephys
000060:
98 behavior+ecephys+ogen
000061:
40 ecephys+image
000065:
1 behavior+ecephys
000067:
10 behavior+ecephys
18 ecephys
000068:
1 icephys
000069:
1 behavior+icephys
000070:
9 behavior+ecephys
000109:
350 icephys
000114:
14 ecephys
16 ophys
000115:
57 behavior+ecephys
000117:
197 icephys
000126:
4 icephys
000127:
1 behavior+ecephys
1 ecephys
000128:
1 behavior+ecephys
1 ecephys
000129:
1 behavior+ecephys
1 ecephys
000130:
2 ecephys
000138:
1 behavior+ecephys
1 ecephys
000139:
1 behavior+ecephys
1 ecephys
000140:
1 behavior+ecephys
1 ecephys
000142:
717 icephys
000144:
2 ophys
000147:
10 ecephys
000148:
46 icephys
000149:
4 behavior+ecephys+image
000165:
572 behavior+ecephys
000166:
19 ecephys
000167:
1 image+ophys
4 ophys
000206:
1 behavior+ophys
000207:
19 ecephys
000209:
291 icephys
000212:
1013 behavior
000213:
67 behavior+ecephys
000218:
74 behavior+ecephys
24 ecephys
000219:
31 behavior+image+ophys
30 behavior+ophys
1 ophys
000220:
34 icephys
000221:
263 ecephys+ogen
000223:
20 ecephys+ophys
000226:
60 behavior
000228:
91 icephys
000230:
9 behavior+ecephys
000231:
44 behavior+ecephys+image
71 behavior+image
000232:
130 behavior
49 behavior+ecephys
000233:
345 ecephys
000234:
19 ophys
000235:
8 behavior+ophys
000236:
9 behavior+ophys
000237:
8 behavior+ophys
000238:
6 behavior+ophys
000239:
180 behavior
000240:
6 ophys
000242:
6 behavior+ecephys
000244:
33 ophys
000245:
25 icephys
000246:
1027 ophys
000248:
66 ecephys
12 ogen
000249:
777 ophys
000250:
3 behavior
000252:
12 ecephys
000253:
84 ecephys
14 ogen
000254:
1 behavior+ophys
000288:
36 icephys
000289:
221 behavior+ophys
000291:
1 behavior
000292:
11 icephys
000293:
121 icephys
000294:
2 ecephys+icephys
000295:
26 icephys
000296:
1278 ophys
000297:
118 icephys
000299:
1 ecephys
000301:
14 behavior+ecephys
000302:
11 behavior+ecephys
21 behavior+ecephys+ogen
000336:
314 image+ophys
2120 ophys
000337:
21 icephys
000339:
66 ecephys
000341:
681 icephys
106 icephys+image
000342:
2 behavior
000345:
10 ophys
000347:
1 image+ophys
8 ophys
000350:
12 ophys
000352:
17 behavior
000353:
4 behavior
000354:
12 behavior
000355:
7 behavior
000356:
5 behavior
000357:
6 behavior
000358:
12 behavior
000360:
1 image
000361:
32 behavior
000363:
5 behavior+ecephys
1 behavior+ecephys+image
70 behavior+ecephys+image+ogen
98 behavior+ecephys+ogen
000397:
3 ecephys
000398:
42 ecephys
000399:
105 ecephys
000402:
19 behavior+image+ophys
000407:
156 icephys
000408:
228 ecephys
000409:
347 behavior
24 behavior+ecephys
305 behavior+ecephys+image
1 ecephys+image
000410:
22 behavior+ecephys
000411:
1 ecephys
000447:
5 behavior+ecephys
000448:
18 image
000454:
4 ophys
000458:
24 behavior+ecephys
000459:
42 behavior+image+ophys
000461:
14 ophys
000462:
14 ophys
000463:
29 ecephys
000465:
36 ecephys
000467:
14685 ophys
000469:
41 ecephys+image
000470:
1 ophys
000471:
61 behavior
000472:
10 ophys
000473:
1 behavior+ecephys+ogen
24 ecephys+ogen
000477:
77 behavior+ophys
000481:
1 ecephys
000482:
1 ecephys
000483:
128 behavior+ophys
000484:
29 behavior
000485:
37 behavior
000486:
36 behavior
000488:
43 behavior+image+ophys
000489:
18 image
000491:
14 ophys
000493:
3 ecephys
1 ecephys+ogen
000526:
2 ophys
000527:
8 ophys
000528:
5 ophys
000529:
27 ecephys
000533:
141 behavior+ophys
000535:
115 behavior+ophys
000537:
125 image
000538:
11 image
000540:
495 behavior+image
000541:
21 ophys
000544:
2 behavior+ecephys+ogen
000546:
1 ecephys
000547:
70 ophys
000548:
19 image
000549:
26 image
000550:
17 image
000552:
104 behavior+ecephys
13 ecephys
000553:
4 ecephys
000554:
36 ecephys
000559:
111 behavior+image
1440 behavior+image+ogen
230 behavior+image+ogen+ophys
153 behavior+image+ophys
5 image+ophys
3 ophys
000562:
7 ecephys
72 ophys
000563:
81 ecephys
14 ogen
000565:
21 ophys
000566:
1 ophys
000568:
2 behavior+ecephys
50 behavior+ecephys+image
4 behavior+ecephys+image+ogen
000569:
103 icephys
000570:
155 icephys
000572:
289 ecephys+ogen
000573:
1 behavior
000574:
45 behavior+ecephys
000575:
18 behavior+ecephys
000576:
9 ecephys
9 ecephys+image
000579:
300 behavior+ophys
8 ophys
000580:
116 ophys
000582:
118 behavior+ecephys
000617:
889 image+ophys
992 ophys
000618:
124 ecephys
000620:
48 behavior+task
47 ecephys
47 spikesorting
000623:
29 behavior+ecephys
000624:
8 behavior
19 image
000625:
3 behavior+ophys
000628:
679 behavior
679 image
000629:
114 behavior+ecephys
000630:
210 icephys
000631:
15 image
000632:
24 image
000633:
2 image
000634:
10 image
000635:
81 icephys
000636:
706 icephys
000637:
292 ecephys
000673:
44 ecephys+image
000675:
3 ecephys
000681:
57 behavior+ophys
000683:
1 ophys
000684:
3 behavior+ecephys
000685:
1 ecephys
000686:
18 image
000687:
11 ecephys
000688:
111 behavior+ecephys
000690:
106 ecephys
000691:
1 image+ophys
000692:
9 ophys
000696:
6 ecephys
000697:
15 behavior
000698:
16 behavior
000699:
17 behavior
000700:
15 behavior
000701:
15 behavior
000702:
16 behavior
000703:
22 behavior
000704:
20 behavior
000705:
20 behavior
000706:
16 behavior
000707:
16 behavior
000708:
17 behavior
000709:
29 behavior
000710:
6 ecephys
000711:
4079 image
1936 image+ophys
000713:
869 ecephys
3271 image
000714:
9 ophys
000715:
10 ophys
000717:
1 behavior+ecephys
1 behavior+ophys
1 icephys
000721:
1 ecephys
000727:
9 behavior+image+ophys
000728:
1518 behavior+image+ophys
1518 ophys
000732:
22 ecephys
000767:
14 behavior+ecephys
14 ecephys
000768:
51 icephys
000769:
177 icephys
000770:
44 behavior+task
44 ecephys
44 spikesorting
000771:
18 behavior+task
18 ecephys
18 spikesorting
000772:
15 behavior+task
15 ecephys
15 spikesorting
000773:
15246 ophys
000774:
10 ecephys
000775:
57 behavior
000776:
38 behavior+image+ophys
000777:
1 ecephys
000778:
1 ecephys
000779:
1 ecephys+image
000780:
1 ecephys+image
000781:
1 ecephys+image
000782:
1 ecephys+image
000784:
6 ecephys
000785:
41 ophys
000786:
1 ecephys
000787:
1 ecephys
000788:
1 ecephys
000789:
1 ecephys
000792:
1 ecephys+image
000793:
1 ecephys+image
000794:
1 ecephys
000795:
1 ecephys
000796:
1 ecephys
000797:
1 ecephys
000798:
1 ecephys
000799:
1 ecephys
000800:
1 ecephys+image
000801:
1 ecephys+image
000802:
1 ecephys+image
000803:
1 ecephys+image
000804:
1 ecephys+image
000805:
1 ecephys+image
000806:
1 ecephys+image
000807:
1 ecephys+image
000808:
1 ecephys
000809:
1 ecephys
000810:
1 ecephys
000811:
1 ecephys
000812:
1 ecephys
000813:
1 ecephys
000814:
1 ecephys
000815:
1 ecephys
000816:
1 ecephys
000817:
1 ecephys
000818:
1 ecephys
000819:
1 ecephys
000820:
1 ecephys
000821:
1 ecephys
000822:
1 ecephys
000823:
1 ecephys
000824:
1 ecephys
000825:
1 ecephys
000826:
1 ecephys
000827:
1 ecephys
000828:
1 ecephys
000829:
1 ecephys
000830:
1 ecephys+image
000831:
1 ecephys+image
000832:
1 ecephys+image
000833:
1 ecephys+image
000834:
1 ecephys
000835:
1 ecephys
000836:
1 ecephys
000837:
1 ecephys
000838:
1 ecephys
000839:
1 ecephys
000840:
1 ecephys
000841:
1 ecephys
000842:
1 ecephys
000843:
1 ecephys
000844:
1 ecephys
000845:
1 ecephys
000846:
1 ecephys
000847:
1 ecephys
000848:
1 ecephys
000849:
1 ecephys
000850:
1 ecephys
000851:
1 ecephys
000852:
1 ecephys
000853:
1 ecephys
000854:
1 ecephys
000855:
1 ecephys
000856:
1 ecephys
000857:
1 ecephys
000858:
1 ecephys
000859:
1 ecephys
000860:
1 ecephys
000861:
1 ecephys
000862:
1 ecephys+image
000863:
1 ecephys+image
000864:
1 ecephys
000865:
1 ecephys
000866:
1 ecephys+image
000867:
1 ecephys+image
000868:
1 ecephys
000869:
1 ecephys
000871:
284 image+ophys
000873:
6 behavior+ecephys
000875:
9 image
000876:
1 ecephys
000882:
16 ecephys
000884:
12 ecephys
000888:
52 behavior
000889:
52 behavior
000890:
125 behavior+ecephys
000891:
87 image
000892:
1 ecephys
000894:
133 ecephys+ogen
000895:
17 ecephys+ogen
000896:
5 ophys
000897:
6 behavior+ecephys
6 ecephys
000932:
238 ecephys
000933:
28 icephys
000934:
13 icephys
000935:
1 ecephys
5 ecephys+ophys
000937:
1 behavior+ecephys
000939:
21 behavior+ecephys
8 behavior+ecephys+ogen
000941:
12 behavior+ecephys
000944:
84 behavior+ophys
000945:
60 ecephys
000946:
1885 ecephys
000947:
272 ecephys
000948:
376 ecephys
000951:
459 behavior+image
36 image+ophys
000953:
20 behavior+ecephys
000957:
9 ecephys+image
000960:
1 behavior+ecephys
000962:
2 behavior+ecephys
18 ecephys
000966:
18 ecephys
```

And here is pointers to dandisets and the trailing entity where we do not have a suffix

```shell
dandi@drogon:/mnt/backup/dandi/dandisets$ for d in 0*; do dts=$(find $d -iname sub*_*.nwb | sed -e 's,.*_,,g' -e 's,\.nwb$,,g' | grep - | sort | uniq -c | sort -n | head -n 1); [ -z "$dts" ] && continue; echo -e "$d:\n$dts"; done
000006:
1 ses-20170226
000007:
1 ses-20151020T093604
000015:
1 obj-10arvlt
000016:
1 ses-161004115936
000017:
1 ses-20161214T120000
000019:
1 ses-EC2-B1
000021:
1 ses-715093703
000022:
1 ses-766640955
000028:
1 ses-20200727T094534
000034:
1 ses-20200824T155542
000045:
1 ses-047d8c7c-6690-4179-a5d3-e8e99fec286e
000122:
1 ses-20200101T021616
000173:
1 obj-101glrx
000217:
1 obj-100ma3n
000239:
1 ses-20180216T131504
000247:
1 ses-2019-06-10-0000-oviDNSS1-GCaMP7b-nwb
000251:
1 ses-Ca-VS-MB-1
000338:
1 ses-20160101
000351:
1 ses-Day10-Pavlovian
000404:
1 ses-session4
000405:
1 ses-Al-OF-092818
000481:
1 ses-20230412T102003
000544:
1 ses-session-1234
000561:
1 ses-20201013
000615:
1 ses-20220411
000628:
1 ses-20191024T115441
000640:
1 ses-20201013
000678:
1 ses-20210830T130549
000690:
1 ses-1298465622
000713:
1 ses-20200817T222149
000717:
1 desc-18000000-frames-13653-by-384-chunking
000732:
1 obj-15pbd0g
000766:
1 obj-101x456
000767:
1 ses-2023-12-15-behavior+ecephys
000950:
1 ses-20230417
000951:
1 ses-(-LC10ad-fly0-170510-1404--)
000954:
1 ses-19250126T113454

```

might need help from @CodyCBakerPhD and @bendichter if they recognize any of those dandisets being prepared by them