Corrects the handeling of extension names as part of enum-names.
Corrects the handeling of extension names as part of enum-names.

Previously if an enumname ended with the name of an extension the name would be striped. For example TEXTURE_ENV from Core11Comp would
become TEXTURE_E.
phaazon/OpenGLRawgen,Laar/OpenGLRawgen,Laar/OpenGLRawgen,phaazon/OpenGLRawgen