Changed to not load outside TTT

- Fixed error in deadchat in TTT2
- Fixed deadchat forcing ttt_limit_spectator_chat to be enabled even if it wasn't on the server before

Fixed error in TTT2 (thanks Stig!)

Fixed soundright's blocklist convar not working

Further optimizations to reduce clientside processing

- Massive back-end update to how events with client-side components register themselves and communicate with the server
- This should reduce the amount of server->client communication that happens when the game enters the prep phase
- Fixed making players invisible not making them fully invisible
- Fixed apparition and specbees not preventing haunting phantoms and infecting parasites from being affected

Removed FCVAR_NOTIFY from all convars

Minor tweak to logging message

Fixed error in Daredevil when a player's attacker is not a player themselves

Fixed Red Light, Green Light not damaging players in vehicles like Airboats