[GL] Fixed TEXTURE_BINDING_RECTANGLE token
[GL] Fixed COMPRESSED_SRGB_ALPHA_BPTC_UNORM token
[Bind] Do not re-translate translated enum names
[Bind] Added ES 3.1 generator
[GL] Removed duplicate enums

This duplication is no longer necessary, after the enum name
translation fix.
[ES] Moved some ES 1.1 to ES/1.1/obsolete.xml
[Bind] Use ES/1.1/obsolete.xml
[Bind] Hardcode some common OpenGL IHV names

These names are present in ES enums, even if no function uses them. We
need them for backwards-compatibility.