Add linting and formatting

[dragonejt]

This PR adds linting using Pylint and formatting using Black, and adds a GitHub Actions workflow to check linting and formatting on each new push or PR. This is functionally optional, but sets a guideline for formatting so there aren't any formatting conflicts or code smells.

Changes

• Add black. Run the black formatter with black ..
• Add pylint. Run pylint python linter with pylint <module>.
• Format code using black
• Add GitHub Actions workflow that checks linting and formatting on each new push or PR

Testing

• Unit Tests are succeeding
• Linting and Formatting checking is working (Pylint is complaining though due to code smells we can fix later)