Add setup.py

Copied the one from what's fresh and changed the relevant bits.
Also changed the version to 0.1.0, because it isn't stable.
Merge pull request #1 from osu-cass/setup.py-17721

Add setup.py
Add Video model, update test
Add Apache v2 license
Merge pull request #2 from osu-cass/bug/17727_add_license

Add Apache v2 license
Change docs: Videos have "modified", not "updated"
Merge branch 'develop' of github.com:osu-cass/working-waterfronts-api into develop
Category model test
Write category model/update tests