[TTT] Special Rounds

1. Added indicator for special rounds in the top-left corner
2. Added round - Juggernaut
3. Minor bug fixes
4. Improved optimization on several rounds

1. Fixed bug where disabled rounds could still be chosen at random
2. Fixed bug where the first infected could place 2 spawn setters
3. Added option for the first infected to not have weapons

1. Added the ability to change a round's chance of being picked over others
2. Minor bug fixes

Added Special Round - One In The Chamber

1. Added optional configuration to force player models on headshot only rounds
2. Added IsRoundSpecial and IsRoundOverriden functions
3. Various minor improvements

Fixed bug when round count goes up by 2 if round is triggered via vote (Interfering with RoundLimit)

Added optional screen message to indicate a special round

Fixed bug where the RDM manager stayed disabled after the special round has ended

Removed useless prints spamming server console

Slightly modified access panel

1. Fixed Invisible Traitors round bug with Pointshop 1
2. Fixed inverted keys staying inverted after the round ended

Added a restricted weapons config option for Free For All and Deathmatch type rounds