Update OpenGL definitions to 4.5 specification
Merge pull request #853 from tambry/OpenGLUpdate

Update OpenGL definitions to 4.5 specification
Removed LLVM and PPU LLVM Recompiler from Debug, Release and 'Debug - MemLeak' build configurations. Added 'Release - LLVM' and 'Debug - LLVM' which include LLVM and PPU LLVM Recompiler.