AME-10477 Prompt user when adding duplicate mechanism (i.e. same type)
AME-10712 Remove identity when registration fails, if identity has no mechanisms
Refactors 'uid' to 'stored' and other fixes
AME-10753 resolves a number of issues around persistence
AME-10153 update the App to use SQLite for persistance
AME-10512 Refactor FRAIdentityDatabase to simplify state change observation