Setup Pre-Commit Hooks

[trevorb1]

Pre-commit hooks will ensure code committed follows correct formatting. Quickly looking at their options, I would think all of the default ones from the pre-commit repository would be good to add. Also, auto formatting for black would probably be good. Totally open to other suggestions as well!

Successful PR for this issue will include:

• Pre-commit hooks added to repository.
  • Auto formatting for Black
  • Type check through mypy
  • Linting check for flake8
• Add badge for Black formatting