[SER] SER HLK Tests finalization

[damyanp]

Missing coverage in current SER HLK tests

• SER accessors called from CH/MS
• HitObject accessor validation when created FromRQ
• SER accessor validation for procedural hits
• Validation of attribute function parameter in invoked CH (== FromRQ provided attributes)
• Same HitObject, different payload types between HitObject::TraceRay, Invoke and TraceRay
• TraceRay/Invoke without PAQs (dxc -disable-payload-qualifiers dxc option)
• Multiple live HitObjects
• Recursive [HitObject::]TraceRay|HitObject::Invoke
• Repeated invoke with the same HitObject
• FromRayQueryWithAttrs untested
• MakeNop untested (only default ctor used)
• Validate Invoke-not-invoking on explicit NOP
• Validate default return values for NOP HitObject

SER test infrastructure changes

• RunDXRTest: Add support for arbitrary number of CH / MS shaders

Test changes/additions

• Test all HitObject getters for NOP HitObject
• Add geometry permutations to SER*GetterTests and SERTraceHitMissNopTest: triangles, procedural, or both.
• Add HitObject producer permutations to all basic tests (Producers: HitObject::MakeNop, HitObject::MakeMiss, dx::HitObject::TraceRay, or TraceRayInline+FromRQ)
• Add CH/MS test variants for all HitObject tests:
  • Classic TraceRay to enter primary set of CH/MS
  • HitObject producer called from CH/MS
  • Secondary CH/MS obtains reference values
• Add attribute test:
  • Obtain attribute to test from CH param, Compare with HitObject::GetAttributes (with producer permutations)
• Add test with HitObject::TraceRay + Invoke with differing payload type
• Recursive HitObject::TraceRay + HitObject::Invoke
  • Compare against recursive TraceRay
• Multiple live HitObjects
• Multi-Invoke on same HitObject (with producer permutations)
• Set NEW_GETATTRIBUTES_API once HLK repo has updated compiler available.
• Make tests use SM 6.9 final once that is availble.

[damyanp]

@simoll - could you comment on this issue please so I can assign it to you?