Added the DeveloperSettingsViewModel and dependency-controlled feature flags
Added the generic 'SessionListViewModel' to reduce duplicate code when we want to just display a selectable list of items
Added an indicator on the home screen to show when using testnet
Added group promotions behind a feature flag
Updated the PushNotificationAPI to use bulk subscribe/unsubscribe requests
Updated the 'GroupUpdateDeleteMessage' and 'GroupUpdateDeleteMemberContentMessage' to support additional behaviours
Updated the SessionCell to have better RTL support (swapped some left/right things to leading/trailing)
Updated the revoke/unrevoke endpoints to take arrays of subaccount tokens
Refactored the Bencode logic to properly support Codable types
Changed the min OS version to iOS 13.0 (support for 'Identifiable')
Removed the alternate approaches to fetching the userKeyPair and userPublicKeyHexString (no consistently routed through the caching method)
Migrated the 'OWSIdentityManager' logic to use the new 'Identity' type
Added the 'Setting' table and got the pattern working fairly nicely (unfortunately there isn't a good way to avoid key collision without proper enums)
Updated the SessionSnodeKit to migration it's data from YDB to GRDB
Updated the SessionSnodeKit to use GRDB throughout it's logic
Setup a migration pattern
Setup the database configuration and security
Started defining the database schema
Started working on the migrations for SessionSnodeKit