gmod_game: Force content to show in the Browse Models folder

Revision 945
Force content to show in the Browse Models folder
Changed UTIL_IsUselessModel to hide crap from Left 4 Dead Changed Files:
[ul]
[li]garrysmod/gamemodes/sandbox/gamemode/spawnmenu/CreationMenu/ModelBrowse.lua [/li][li]garrysmod/lua/includes/util.lua[/li][/ul]

Committed By Garry Newman