[clang-tools-extra] [clang-tidy] Create a check for signed and unsigned integers comparison (PR #113144)

[via cfe-commits]

qt-tatiana wrote:

> Perhaps this has been discussed before, but I think the part about "add qt module" should be added on a separate patch, since adding a brand-new tidy module is a rather big thing.
> 
> So this patch could be only about adding the `modernize` check, and a follow-up patch could add the qt module and alias.

Done, I've deleted qt related code from current code-version.

https://github.com/llvm/llvm-project/pull/113144