[TTT] Special Rounds

1. Improved optimization for the Crowbar Only, Knife Only and Vampire Assault round
2. Fixed Infected round bug that would occur when the survivors won
3. ~~Fixed issue that would cause infinite credits after certain rounds~~
4. Round indicator/description now scales with screen resolution
5. The size of the round indicator/description can now be changed from the config file

Files Changed: 7 special_rounds/knife_only.lua special_rounds/crowbar.lua special_rounds/infected.lua special_rounds/vampire_assault.lua special_ttt_rounds_functions.lua autorun/client/cl_special_ttt_rounds_autorun.lua special_ttt_rounds_config.lua