Make this a proper installable package

[askmarkio]

I want this to be installable. Let's follow some guides to make this an installable package: the user can download the package and run 'python setup.py' or a 'pip install' to install the app.

Some resources:

• https://www.digitalocean.com/community/tutorials/how-to-package-and-distribute-python-applications
• https://stackoverflow.com/questions/1550226/python-setup-py-uninstall
• https://python.land/virtual-environments/installing-packages-with-pip
• https://pip.pypa.io/en/stable/installation/