Minor adjustments to CEF implementation
* Added some safeguards in resource handlers
* Added mime type translations for gif, webm, mp4
Remove "Hinge Axis (Non functional)" field from prop_door_rotating
Fixed a crash with failing to create `physics_entity_solver` entity
Try to solve potential backwards compat issues w/ voice panel changes
Fixed an infinite loop with TokenReader::IgnoreTill
Do not play suit animation on spawn
* This is apparently a thing where multiplayer gamerules force equip the suit on spawn, but with animation enabled
PR: Prevent Lua errors when running gmod_admin_cleanup twice
Try keeping Win7/8 support for Hammer for that one guy
* Probably shouldn't bother since it affects < 0.1% of Windows users, but it's also a tiny change
Added sv_standable_normal