[clang-tools-extra] [clang-tidy] Add documentation and smoke test for CUDA (PR #173699)

[via cfe-commits]

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

Seems fine foe me, but please wait for @carlosgalvezp who knows domain specifics.

https://github.com/llvm/llvm-project/pull/173699