Cleanups / warning fixes
Removes hud_centerid and hud_showtargetid which were unused.
Added Counter-Strike: Source content to Garry's Mod
Separate VPK with models, sounds and materials/textures that is mounted if CS:S is not manually mounted.
The version shipped with GMod does not have any music or voice over, duplicate content or any of the maps.
Adding Half-Life 2 Episodic content as fallbacks
Again, no voice over or music, but models, materials and sound shipped.
Remove sw.vtx from CSS vpk
Enable Episodic spawnmenu content (NPCs/Vehicle/Entity) by default