Model asset credits

Imported from solcloud/Counter-Strike, pinned to commit 25a292ff1b9d8ac876f6a96fdbbd6712bbbba803. The repository documents individual model licenses in its model README.

Scoped rifle (used visually for the Scout): assets/weapon-scout.glb

Knife: assets/weapon-knife-ct.glb

Evaluated, not shipped

Character and team clothing