Fixed DropEntityIfHeld affecting all players holding anything
Implements `CHL2_Player::ForceDropOfCarriedPhysObjects`'s argument to actually work
Also now affects Physics Gun, for consistency with other such functions.
it is now an alias of `Entity:ForcePlayerDrop()`, and is deprecated in favor of it.
Fixed Close Caption HUD being disabled by sethudvisibility input
Update .gitignore
Fix MatSelect erroring on select if not given a convar
Added MatSelect.OnSelect and OnRightClick
Improvements to PropSelect to match MatSelect
Implement Panel:Clear
Added OnSelect hook
Added OnRightClick hook
Fixed errors when not given a convar
Added FindModelByValue
Added SelectModel