gallium/swr: Enable some ARB_gpu_shader5 extensions
Enable / add to features.txt:
- Enhanced textureGather.
- Geometry shader instancing.
- Geometry shader multiple streams.
Reviewed-by: Jan Zielinski jan.zielinski@intel.com
Enable / add to features.txt:
Reviewed-by: Jan Zielinski jan.zielinski@intel.com