Add static checks

Requires #7

@egecetin this PR contains a lot of changes and is hard to review. Is it possible to maybe split it into multiple smaller PRs? Maybe:

• Run clang-format for different parts of the code (2-3 PRs)
• Add basic pre-commit
• Add typos & codespell
• Add dependabot
• Maybe more if I'm missing someinth?

@seladb Most of them are whitespace changes and unfortunately GitHub renders it really bad. Did you try to use VSCode directly to take a look for changes? If I'm not mistaken GitHub Pull Requests extension but not sure. See screenshot below. If you still think review is hard I can split it off course

Most of them clang-format change so I can split clang-format

Most of them clang-format change so I can split clang-format

Maybe at least split clang-format from the rest so it's easier to review?

@seladb Sure will work on it

@seladb This PR is clear now and ready for the review