Sign In Logic

[aaronm-2112]

Email sign in and account creation is required. TO do this properly UI and logic will have to be pretty largely enhanced/edited. So this is next level sign in stuff to get later once bigger fish have been fried.

[aaronm-2112]

Okay sign in logic is closed for the most part, but will need to add one final step, which is to allow an auth token to be associated with many different sign in methods. There is a Firebase guide for this, but it is not the biggest issue for now.