Make pip installable

[charlesdrotar]

Added functionality to make package pip-installable. Doing this in pypi has raised some concerns about the ordering of the install that made it difficult to account for. You can however install using the following command:

git clone https://github.com/tgsmith61591/skutil.git && cd skutil && git checkout remotes/origin/make-pip-installable && pip install -e . && cd ..

I will continue trying to address the ordering, but the above command should work.