Hats, Cosmetics,and OF Mercenary now have support for Player colors

- Merge pull request #2 from TreeFortress2/main
- granted Weapon cross-compatibility between mutiple playermodels
- added missing gib models for OF Mercenary and TF2C Mercenary

Added The Pre-Fortress 2 Civilian

Major Update:

Added 12 new playermodels:

Pre-Fortress 2 Classes

Open Fortress Mercenary

Team Fortress 2 Classic Civilian

Team Fortress 2 Classic: Community Edition Deathmatch Mercenary