[clang-tools-extra] [clang-tidy][NFC] add '.clang-tidy' config for clang-tidy project (PR #147793)

[Carlos Galvez via cfe-commits]

carlosgalvezp wrote:


> I will add it in a separate PR. Don't feel right to make kind-of unrelated changes after most of the people gave their consent.

Ok!

https://github.com/llvm/llvm-project/pull/147793