* Move AccountAttributes into shared file
* Add AccountAttributesRequestFactory
* Add new AccountAttributes generators
* Migrate verifyPrimaryDeviceRequest
* Migrate verifySecondaryDeviceRequest
* clarify the role of secondary device account attributes
* Remove AuthKey from AccountAttributes; it was unused on the server and therefore totally vestigial
* remove old updatePrimaryDeviceAttributes request and associated code
* Add registration recovery password to AccountAttributes
* Unconditionally set account attributes when changing or setting the PIN
* fix tests
* easy pr comments
* dont set v1 2fa pin unless no kbs backups exist
* Go to chat list view after registration
* sync system contacts during registration
* Use explicit local credentials for storage service operations during registration
* fix tests
* Quick hack to get through double pin confirmation
* Finishing touches
* lint
* fix build
* reload phone number discoverability after storage service sync
* fix tests again
* Take chat auth on account and contact record initializers
* Change around branches for clarity in OWSUserProfile
* pr comments
* Split ChatServiceAuth into the same and AuthedAccount
* fix tests
* merge woes
* Finish registration in RegistrationCoordinator
* Get tests to compile again (but not pass)
* Tests passing again
* Test session happy path all the way through to completion
* Test KBS auth credential happy path all the way through to completion
* Test KBS reg recovery password happy path all the way through to completion
* PR comments
* Add ability to compute registration recovery password
* Add RegistrationCoordinator
* remove repeat nav controller that evan added
* Scaffolding for RegistrationCoodinator test
* Add first round of RegistrationCoordinator tests, some stuff I needed to get them working, and some fixes to RegistrationCoordinator itself I discovered thanks to the tests
* switch to owsFailBeta
* Add auth credential candidate flow tests, related fixes and additions to coordinator and friends
* Add tests for session based registration path and associated fixes
* PR comment nits
