Update Class Diagrams and Write Schema for User/User Profile

[JustinASmith]

Our class diagrams need to be updated to reflect the latest discussion with Chase. Currenlty we don't have an exhaustive class diagram (missing map feature), but we did go over the User/User Profile aspect of things. If we agree the User/User Profile is an accurate class diagram, we need to work on creating a Database Schema so we know how Firebase will look and ultimately create out models after this.

• Verify User and User Profile class diagrams are accurate and scalable.
• Write JSON schema to enable us to create our class Models and also structure our Firebase Firestore Collections.
• Write class Models based on JSON schema.
• Write methods on Api/Service class that saves our Model to Firebase Fierstore and automatically creates our collection based on the model.

[JustinASmith]

Closing. Models are created and we are working on service class. Issue #21 is being worked on.