feat(project-template): clang-tidy targets

* Add clang-tidy targets to project

 - add .clang-tidy file containing our settings and some configs
   according to our coding guidelines
 - add three explicit targets for calling just lint or lint-and-fix, lint-and-fix-and-commit-after-each-fix
 - add enable-able support for CMake"s "native" clang-tidy support (makes
   build super-slow)