OpenGL.GLES2.ANGLE.texture_compression_dxt3

OpenGL extension ANGLE.texture_compression_dxt3

This module customises the behaviour of the OpenGL.raw.GLES2.ANGLE.texture_compression_dxt3 to provide a more Python-friendly API

The official definition of this extension is available here: http://www.opengl.org/registry/specs/ANGLE/texture_compression_dxt3.txt