Further config util logic
...
Removed the usage of the OWSAES256Key (using CryptoKit and raw data instead)
Removed the pre-compiled headers to speed up builds with minor changes (explicit imports instead)
# Conflicts:
# Session.xcodeproj/project.pbxproj
# SessionMessagingKit/Database/Models/ClosedGroup.swift
# SessionMessagingKit/Protos/Generated/SNProto.swift
# SessionMessagingKit/Protos/Generated/SessionProtos.pb.swift
# SessionMessagingKit/Protos/SessionProtos.proto
# SessionMessagingKit/Sending & Receiving/MessageSender.swift
# SessionMessagingKit/Sending & Receiving/Pollers/CurrentUserPoller.swift
# SessionMessagingKit/Utilities/ProfileManager.swift
# SessionSnodeKit/Models/DeleteAllMessagesRequest.swift
# SessionSnodeKit/Models/GetMessagesRequest.swift
# SessionSnodeKit/Models/SendMessageRequest.swift
# SessionSnodeKit/Types/SnodeAPINamespace.swift