Decide on code formatter and code style for beRi and subprojects

[sdhutchins]

There are a number of docstring styles and overall code style formatters that can be implemented to make code style easier to manage and implement across for multiple maintainers and projects.

• [ ] Choose a formatter.

Check out Auto formatters for Python to see a review of yapf, black, and autopep8.

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• [ ] Choose a docstring style.

Check out Docstrings by Example: Documenting Python Code the Right Way for different docstring examples.

pyment can also be used to autogenerate docstrings.

[sdhutchins]

See https://github.com/datasnakes/renv/issues/17

[sdhutchins]

As discussed earlier today, 1. default to google code style, 2. Use pycharm (mainly 4 spaces instead of a tab for indentation.).