Phase 1 of the openvsx publisher agreement API to Quarkus

This is an MBO for @zacharysabourin in Q1. The deliverable is the API deployed on staging to allow us to test. However, I am expecting us to deploy this to production in early Q2.

@zacharysabourin Can you start by breaking down this project into smaller deliverables such as writing tests and implementing the various delete, get, and post requests? This can be done by adding tasks to this issue or by creating new issues for bigger and more complex tasks.

I am not expecting perfection as you will probably need to create an additional issue as you make progress on this project.

I will attach the issues that were already created. Try to think of everything else that this project will need!