Add LinearAlgebra TAEF execution tests for SM 6.10 linalg operations

Adds a test scaffold for linear algebra matrix operations, following the
same architectural patterns as the LongVector tests:
- Op/ExpectedBuilder structs with ValidationConfig
- dispatchTest/runAndVerify separation
- Macro-driven InputSet data tables for all SM 6.10 ComponentTypes
- Multiple matrix dimension coverage (2x2, 4x4, 4x8, 8x4, 8x8)

Initial ops: FillMatrix, MatrixStore, MatrixAccumulate, MatrixMul.
Intended as a framework for the senior developer implementing linalg
functionality in DXC to write execution tests against.

Co-authored-by: Copilot <[email protected]>

Author: alsepkow

tools/clang/unittests/HLSLExec/CMakeLists.txt

@@ -10,6 +10,7 @@ add_clang_library(ExecHLSLTests SHARED
   ShaderOpTest.cpp
   TableParameterHandler.cpp
   LongVectors.cpp
+  LinearAlgebra.cpp
   HlslExecTestUtils.cpp
   ExecHLSLTests.rc
   )