[Error Handling Attempt]: Do Not Merge

[SLRAM]

In this PR I have:

• Created a FirebaseError Protocol to allow for conformance from FirebaseAuthError, FirebaseFirestoreError, FirebaseStorageError, and ImageProcessingError. ImageProcessingError is not an error type that comes from Firebase.
• Created helper functions within an extension of NSError to allow for retrieval of FirebaseAuthError, FirebaseFirestoreError, and FirebaseStorageError types from async functions.

Intention:

• My goal here is to allow for error handling for errors received from Firebase along with other custom local errors in a way that my functions can return any of these types and display a message to the user. I am unsure of the best approach to go about this handling. My assumtion is to conform all of these different errors into one custom type and work with that custom type.
• Along with this, the intention is also to prevent having multiple catch patterns for any do/catch statement. I am aiming to only need one catch.

Avoid	Goal