MVC model Flutter Integration

Firebase Auth Using singInAnonymously(), signInWithGoogle(), signOut(), createUserWithEmailandPassword(), signInWithEmailandPassword(),

Firestore saveUser(), readUser(), updateUserName(),

Used Packages firebase_auth: ^3.3.12, firebase_core: ^1.14.0, get_it: ^7.2.0, provider: ^6.0.2, google_sign_in: ^5.2.4, cloud_firestore: ^3.1.11, firebase_storage: ^10.2.10,