OpenGLES V3 Header files (Perf Counters)

Hi KMSCube team, 8 months ago I filled a ticket to highlight an issue with OpenGLES V3 Headers. A solution has been partially answered for ShaderToy and Texturator. Nonetheless this is not enough. There is also Performance counters. A lot of references are used and makes things difficult to compile KMSCUBE without GLES V3 Headers.

Nonetheless I doubt Performance counters feature needs GLES V3 Headers, V2 is enough.