Attempt to fix traitor team voice chat

Update voice logic to hopefully support new traitor roles

Added support for new roles to the Awards/Highlights end-of-round summary tab

Added support for the new roles to the Scores end-of-round tab
Fixed DoPlayerDeath error when smoking Killer is killed

Removed ttt_show_panel command

Added missing change

Updated end-of-round summary to include tabs for the old functionalities (Highlights/Awards, Events, Score)

Added error prevention to DoPlayerDeath

Fixed player changed to Killer starting to smoke immediately

Changed TTT_RoleChanged to only be fired on the server