This enables support on GM200+ for:
- GL_AMD_vertex_shader_layer
- GL_AMD_vertex_shader_layer_viewport_index
- GL_ARB_shader_viewport_layer_array
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
[lyude: add relnotes/TES cap]
Signed-off-by: Lyude <lyude@redhat.com>
[imirkin: move relnotes to right place, add features.txt]
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>