GL_EXT_vertex_array_setXXX
http://www.opengl.org/registry/specs/EXT/vertex_array_setXXX.txt
GL_EXT_vertex_array_setXXX

	void glBindArraySetEXT (const void *arrayset)
	const void * glCreateArraySetExt (void)
	void glDeleteArraySetsEXT (GLsizei n, const void *arrayset[])
