Adding Github action to automatically publish to pypi

[davereinhart]

Publishing id3c to pypi will help standardize how this package is being installed compared to other dependencies. This will make the package simpler include in multiple applications and pin to a specific version when needed.

One workflow change this will require is that commits on master branch will need to be tagged to be published to pypi.org (whereas all commits on master branch will be published to test.pypi.org). A version naming convention will need to be decided on and integrated into the deployment workflow, but the specific format chosen will not impact this PR.

[davereinhart]

A simple version naming convention was already established, so one option is to stick with that: https://github.com/seattleflu/id3c/commit/538ba22f676922845be39bab1025acb9c67ae87d

[davereinhart]

Note to self: this needs to be rebased and updated to use Python 3.9