Backend: Draft DB Schema

[wrycode]

• [x] Create Cloud SQL instance
• [x] draft DB schema, considering the following
• [ ] may need ERD?
• [ ] Schema needs to provide a way to store
  • [x] global user preferences (also just JSON blobs)
  • [x] users
  • [x] JSON blob storage for the trips
• [x] permissions (abstraction to allow specific users to view/edit JSON blobs)
• This is a draft, we will have to review next week

[wrycode]

https://github.com/Capstone-DayScape/dayscape-backend/pull/18