[clang] [HLSL][CMake] Add clangd and distribution settings (PR #92011)

[Justin Bogner via cfe-commits]

https://github.com/bogner approved this pull request.

Including clang-tools-extra makes sense to me. Setting up the distribution may not be as universal but it seems fine too as a default in this cache file.

LGTM

https://github.com/llvm/llvm-project/pull/92011