New Github workflow for format check

[JoshuaSchlucke]

As a Product Owner/Scrum master, I want to ensure the quality and readability of the code, so that there are less bugs in our code.

Acceptance Criteria

1. If a user pushes code
2. a workflow should run that checks if it adheres to the google style guide

Additional Resources:

https://github.com/claassenlab/cellpose/wiki/The-Google-code-style

Notes