main/get: make KHR_debug enums available everywhere
main/get: make KHR_debug enums available everywhere

Move all the enums but CONTEXT_FLAGS. The spec seems quite explicit
about the latter (wrt OpenGL ES)

    "In OpenGL ES versions prior to and including ES 3.1 there is no
    CONTEXT_FLAGS state and therefore the CONTEXT_FLAG_DEBUG_BIT cannot
    be queried."

v2 [Emil Velikov] Rebase.
v3 [Emil Veliokv] Drop the CONTEXT_FLAGS hunk - not applicable for GLES

Signed-off-by: Matthew Waters <5fc2be5791e6577171a48d22e08b320e0d663a82@gmail.com>
Signed-off-by: Emil Velikov <4c996f2f093ddd0585a556460b4cc3ba555546ef@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler