Requirements

1 - User shall be able to log in or sign up (Required)

1.1 - App shall open to the login/sign-up screen where users can choose to log in with a pre-existing account or sign up (Required)
1.2 - App shall use Google FireBaseUI Auth to authenticate user sign-ins (Required)
1.3 - User shall be allowed to create their own username and password when signing up (Required)
1.4 - Passwords shall be checked for strength and only allowed if strong enough (Desired)
1.5 - User shall be allowed to log in/sign up using their Google account (Required)
1.6 - User shall be allowed to log in/sign up using other accounts like Twitter, GitHub, FaceBook etc. (Aspirational)

2 - User shall be able to access various app