[clang-tools-extra] [clang-tidy] Add readability-use-builtin-literals check (PR #76065)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL requested changes to this pull request.

Overall what is now is +- working.
Few fixes are still needed to tests, code, maybe some tiny refactoring and code formatting.

Consider adding support for implicit casts:
```
unsigned X = 10;

`-VarDecl <line:1:1, col:14> col:10 X 'unsigned int' cinit
  `-ImplicitCastExpr <col:14> 'unsigned int' <IntegralCast>
    `-IntegerLiteral <col:14> 'int' 10
```
To:
```
unsigned X = 10U;

`-VarDecl <line:1:1, col:14> col:10 X 'unsigned int' cinit
  `-IntegerLiteral <col:14> 'unsigned int' 10
```

I worry also a little bit about integer overflow issues.

https://github.com/llvm/llvm-project/pull/76065