Also added ISourceMod::GetModFolderName() for returning the name of the mod directory by itself
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40702
1) Added natives to create and manipulate global and private forward
2) Added natives to call forwards and functions
3) Added an IChanageableForward::RemoveFunction overload for convenience or something
4) Added test suite plugins for functions and forwards
5) Some random touch-ups to some include files
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40627
