gmod_src: VPK searchpaths, allows L4D etc to appear in 'brow..

Revision 838
VPK searchpaths, allows L4D etc to appear in ‘browse’
http://cloud.steampowered.com/ugc/558651520374371554/9D7B6FBFF89EA62D4DAA69D523A821D9C0514BE9/Changed Files:
[ul]
[li]trunk/src_garrysmod/filesystem/basefilesystem.cpp[/li][li]trunk/src_garrysmod/filesystem/basefilesystem.h[/li][li]trunk/src_garrysmod/garrysmod/lua_shared/lua_shared.cpp[/li][li]trunk/src_garrysmod/public/filesystem.h[/li][li]trunk/src_garrysmod/public/filesystem_passthru.h[/li][li]trunk/src_garrysmod/public/vpklib/packedstore.h[/li][li]trunk/src_garrysmod/vpklib/packedstore.cpp[/li][/ul]
Committed By Garry Newman