[PTU] v2.73.1 - Playtest Update

This update focuses on steam auth system and discord rich presence.

• Game will now warn the player if steam is not loaded.
• Game will fall back to offline mode if steam is not loaded.
• Added discord rich presence.
• Added protection against bad words in names.
• Added protection against usernames with in game hud icons
  • Protection can be disabled by server/client owner with the convars below.
  • sv_allowIconsInNames
  • sv_allowIconsInChat
  • cl_allowIconsInNames
• Fix pilot ultimate titanfall assigning the titan to player 0.
• Fixed broken discord link in the lobby.
• Fixed satchel precache issue. Added to dev menu.
• Added a new warning screen if player is in PTU branch.
• Fixed script crash if a playlist is not registered.
• Map enum has been removed. Mods now do not need to register custom maps.