[ISSUE 109] Back-end Repo Setup

[daphnegold]

Summary

Fixes #109

Time to review: 1 hour

Changes proposed

This adds a base Flask application with tooling, tests and goodies.

Context for reviewers

Please pull down the branch, run through the getting-started.md to check that everything works, and run the tests!

Fast follow issues:

Pre-commit hooks #223
Vulnerability checks #239
License checks #238

Note: After this PR is on main, will need someone with admin privileges to add GA checks passing as a blocker for merging PRs.

[daphnegold]

I didn't feel confident removing this from the .gitignore so I just included another rule below to include our testing /lib but let me know!

[SammySteiner]

I was able to run tests successfully:

[SammySteiner]

Looks great to me!
I was able to start the app and access localhost:8080/docs as well as run tests successfully.

[widal001]

This looks great, such a major achievement 🎉 👏 !!!

I saw the code quality checks are running, which was the primary ask for this ticket, and I was able to get the API spun up locally (see screenshot below).

Request

My one suggestion, is that we may want to re-evaluate where some of the docs are stored and make it easier for folks to discover the steps needed to install and spin up the API from the main README. But let's create a follow-up ticket for that work to unblock this sizable PR from being merged.