Jelle Raaijmakers 7ad18e91e2 LibGL: Add capabilities to context parameters ...

Context parameters are LibGL's way of centrally defining all parameters
that can be retrieved through `glGetBoolean*`, `glGetInteger*`, etc.
The spec describes that capabilities such as `GL_LIGHTING` can also be
retrieved through these methods, but it should not be possible to
retrieve random boolean parameters through `glIsEnabled`. For example,
`GL_UNPACK_LSB_FIRST` can only be retrieved through `glGet*`.

This moves reading of capabilities to `::get_context_parameter` and
implements its use in `::gl_is_enabled`.

2022-01-09 23:21:03 +01:00

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