This builds on MR !13580 (merged) and adds support for per-primitive VRS rates.
The differences between other shaders and mesh shaders are listed here:
| VS, TES, GS | MS | |
|---|---|---|
| Output type | per-vertex | per-primitive |
| Export instr | exp pos1 |
exp prim |
| Export channel | 0 | 1 |
| Encoded export bits | bits 2:5 | bits 28:31 |
| VRS rate combiner | vertex | primitive |