[DirectX] Implement pass to transform `tbaa` LLVM metadata to DXIL version

[inbelic]

From #137386 (comment).

We need to account for when the modern metadata representation (eg tbaa) has changed from DXC. The upstream representation version is what is generated when with code-gen in clang but we will need to lower it to be the DXIL (LLVM 3.7) compliant metadata.

In this case, it would entail removing metadata that is unknown in DXIL. As part of this change, we should move the current whitelist of metadata removal to this pass: #136386.

AC:

• Update DXILTranslateMetadata.cpp to transform any llvm tbaa metadata to its DXIL equivalent and add it to the white list
• Add test cases of the passes removing/transforming respective metadata

[inbelic]

This issue was used to track if we should create a separate pass for transforming the metadata (and any future metadata). However, such functionality fits nicely into DXILTranslateMetadata rather than creating a new one in the pipeline so we can close this.