Implement /schedule/ endpoints

[cocolocomoco21]

Implement the endpoints in the /schedule/ resource, first with fake data. This includes

1. POST /schedule/generate - start the "generating" process. Generate schedules using the current stored data in the DataStore class
2. GET /schedule/ - fetch the generated schedules. The frontend will poll this to get the generated schedules. Return null if scheduling is not yet complete. Return the list (limit 10?) of schedules once scheduling is complete