llvmpipe enable GL 4.3, GLES 3.2 and robustness query
robustness needs some drisw enablement work.
This now enables GL 4.3 and GLES 3.2 on llvmpipe
GL 4.3 and GLES 3.2 are non-conformant currently.
Also enables EXT_texture_shadow_lod which just works.
Edited by Dave Airlie