Add projects to the Backend

[joelamouche]

THIS CAN BE DONE IN THE LANGUAGE OF YOUR CHOICE

Create a backend (either additional microservice, or add it to our monolithic backend), with a database and add CRUD endpoints for projects.

Projects have these attributes: name, description, status (proposal, ongoing, rejected), creator (address)

Only an address with a profile in our backend can create a project.

Implement later:

• api auth: like in our backend, sign with mm to crud projects
• upvotes

[joelamouche]

@pheobeayo wants to add this to the existing rust backend

[pheobeayo]

@joelamouche I would love to take this up

[joelamouche]

Done in #165