[Team Yankee] Catalog Overhaul

Hi ho, Ursy-desu.

My group's lookin into Team Yankee now, so I'm lending my skills to the repo to overhaul and update everything; it'll be slow as I'm also working on Flames of War at the same time, but I'll keep track of my work here in the meantime.
If anyone has any questions, hit me up on Discord @zharrpostingghoroth.

**NATO**:

- [x] America
- [x] American Continental
- [x] ANZAC/NZ
- [x] Belgium
- [x] British
- [x] Canada [have to go back and re-work some ally stuff, but mostly complete]
- [x] France
- [x] Netherlands
- [x] West Germany

**Nordic Countries**:

- [ ] Denmark
- [ ] Finland
- [ ] Norway
- [ ] Sweden

**Warsaw Pact**:

- [x] Cuba
- [x] Czechoslovakia
- [x] East Germany [First up, then the rest here since they're largely the same units]
- [x] Poland
- [ ] Soviet
- [ ] Soviet Airborne
 

**Oil War**:

- [ ] Iran
- [x] Iraq
- [ ] Israel
- [x] Syria

**Checkpoint Charlie**

- [ ] US
- [ ] British
- [ ] West German
- [ ] Soviet
- [ ] East German