Native bindings to the ARM_texture_unnormalized_coordinates extension.

This extension provides the option to switch to unnormalized coordinates for texture lookups using a sampler parameter.

Texture lookup in OpenGL ES is done using normalized coordinates. For certain applications it is convenient to work with non-normalized coordinates instead. It also beneficial to keep support for bilinear filtering.

Additional restrictions apply to textures with non-normalized coordinates that affect texture completeness and the available texture lookup functions.

Requires GLES 3.0.