Setup git hooks

[Stevinson]

We have git hooks that run ruff (linter), black (code formatter), and isort (standardising imports), to improve maintainability of the code base.

To set these up all you need to do is run:

pre-commit install 

Now every time you try to make a commit, the hooks will run automatically on your staged files.

Further instructions:

• To manually run the hooks on all files: pre-commit run --all-files
• To manually run on staged files only: pre-commit run
• To skip (not recommended) for a commit: git commit -m "your message" --no-verify