Some work on OS X's cheat interface.
Use .cht as the file extension for cheats.
Create a file handler for cheat files.

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@86364 e17a0e51-4ae3-4d35-97c3-1a29b211df97
Make some functions in SoftGL on OS X use modern Objective-C syntax.

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@86365 e17a0e51-4ae3-4d35-97c3-1a29b211df97