Native bindings to the ARB_stencil_texturing extension.

This extension allows texturing of the stencil component of a packed depth stencil texture. Stencil values are returned as unsigned integers. It is not possible to sample both depth and stencil values from the same texture, and this extension allows the app to select which is sampled for the bound texture.

Requires ARB_depth_texture and EXT_packed_depth_stencil. Promoted to core in OpenGL 4.3.