Black attempted to spread a template line onto multiple. Cookiecutter
doesn't like this.

Add fixes to setup.py for the inability to import pip for parsing
requirements files.

Update tox with new coverage commands and only test on a single Python3
version.

Create venv if one doesn't exist with direnv.

Remove encoding pragma as this is no longer necessary as of ~Python3.6?

Remove _compat.py as six does a better job and Python2.7 shouldn't be in
use anymore.

Add the requirements directory text files to the Manifest.in.

Update versions of pre-commit repos.

Copied and modified all files to be templatized and pulled in some
niceties from

https://github.com/ardydedase/cookiecutter-pypackage
https://github.com/Nekroze/cookiecutter-pypackage
https://raw.githubusercontent.com/tony/cookiecutter-pypackage-pythonic