Feature/pkg bioconverters

[creisle]

This PR is entirely formatting changes. I didn't change any code functionality except adding the setup files.

• auto format with black
• update styles to match PEP8 (snake case variables, not comparisons, unused imports etc)
• Add type hints
• Add packaging files (setup.py, setup.cfg)
• Add actions workflows

Note: I added the actions workflows b/c I had them handy, travis is kind of slow, and i wasn't sure how to do something on only published releases with travis. but I am more than happy to figure that out if you prefer to stick with travis

Note2: this will require adding PYPI credentials to the repository secrets before a tag is made (making a tag/release triggers the publish to pypi workflow)

[creisle]

@jakelever looks like the 1 travis build failed due to a connection/timeout error. Why are there 4 different versions of the build running on travis?

PS. if you are ok with swapping to actions I will just remove the .travis.yml

[jakelever]

This looks great. Thanks for all the work. Moving away from Travis sounds good to me. I've slowly been moving my other projects over to Actions.