Remko RKL490 to RKL495, TROTEC, Novamatic, Rexair, Fischer, freecom etc. AC remote IR code - Need help

**Describe the problem you have/What new integration you would like**

I want to add my Remko AC RKL490 to the esp database of supported ac remote IR codes
This is the remote:
The REMKO-1613138 remote should be for the AC:
- Remko RKL495
- Remko RKL494
- Remko RKL491
- Remko RKL490
- TROTEC PAC 4600
- Novamatic CL 990
- Novamatic CL 1590
- Rexair C15000N
- Fischer ClimaButler (Clima|Butler) RCS-SD43UAI
- Fischer ClimaButler (Clima|Butler) RCS-SD43UWI
- freecom RCS-SD43UAI
- freecom RCS-SD43UWI
- Prem-i-air 15000 BTU

I guess there are all the same but branded different. Possible that there are more brands :D
**Please describe your use case for this integration and alternatives you've tried:**

The problem is that I got always a different raw ir code when I push the same button on the remote.
My esphome yaml is:
```
remote_receiver:
pin: GPIO13
dump: raw
```

Power button gives me:
```
[16:17:49][I][safe_mode:041]: Boot seems successful; resetting boot loop counter
[16:19:39][I][remote.raw:028]: Received Raw: 558, -3513, 535, -1515, 558, -489, 560, -488, 532, -577, 531, -517, 556, -483, 531, -1510, 555, -1557, 528, -519, 528, -518, 531, -516, 555, -554, 555, -493, 557, -489, 555, -492, 532, -578, 554, -493, 528, -520, 549, -497, 555, -555, 554,
[16:19:39][I][remote.raw:028]: -493, 555, -493, 549, -497, 559, -550, 555, -492, 552, -496, 556, -490, 555, -554, 557, -491, 551, -496, 556, -491, 552, -557, 551, -487, 557, -1486, 553, -1487, 552, -1552, 551, -1498, 554, -483, 553, -1498, 549, -562, 547, -489, 554, -1497, 550,
[16:19:39][I][remote.raw:041]: -497, 550, -558, 548, -500, 546, -492, 546, -1504, 521, -579, 549, -1493, 546, -1503, 546, -493, 544, -1506, 545, -3396, 544
[16:19:39][W][component:237]: Component remote_receiver took a long time for an operation (55 ms).
[16:19:39][W][component:238]: Components should block for at most 30 ms.
```
when I push again:
```
[17:03:12][I][safe_mode:041]: Boot seems successful; resetting boot loop counter
[17:08:58][I][remote.raw:028]: Received Raw: 554, -3519, 554, -1518, 555, -470, 576, -470, 578, -534, 552, -493, 553, -495, 561, -486, 577, -558, 538, -510, 526, -496, 551, -493, 554, -582, 536, -512, 527, -494, 553, -493, 572, -564, 527, -521, 527, -493, 554, -492, 555, -581, 528,
[17:08:58][I][remote.raw:028]: -492, 554, -493, 555, -493, 554, -556, 554, -493, 554, -494, 552, -493, 555, -556, 553, -493, 553, -493, 555, -494, 553, -557, 553, -483, 554, -1487, 555, -1486, 556, -1548, 555, -1495, 555, -484, 553, -1496, 554, -557, 552, -484, 579, -1472, 554,
[17:08:58][I][remote.raw:041]: -492, 554, -581, 528, -521, 527, -486, 552, -1495, 554, -554, 556, -494, 553, -494, 553, -494, 576, -471, 553, -3384, 558
```

**Additional context**

I only borrowed the remote control from a friend. I still have it for 2 days. I would be very grateful for any tips on IR code dumps.

I can't believe that a replacement remote control would cost €70!

Start from the ESPHome AC remote-code database and the remote_receiver YAML configuration shown in the issue. Compare repeated raw dumps from the REMKO-1613138 remote, determine whether they represent a stable code, and document or add verified support for the listed compatible models; done means the code reliably controls the AC.

Written by the indexing model from the issue text.