fix testcases, add new testcase for moving mails, fix bug move mail

enzevalos_iphone/MailHandler.swift

enzevalos_iphone/persistentData/PersistentDataProvider.swift

enzevalos_iphoneTests/AutocryptTest.swift

enzevalos_iphoneTests/CoreAddressTest.swift

enzevalos_iphoneTests/CoreKeysTest.swift

enzevalos_iphoneTests/CoreMailTest.swift

enzevalos_iphoneTests/CryptoTests.swift

enzevalos_iphoneTests/GeneratedMocks.swift

enzevalos_iphoneTests/MailTest.swift

enzevalos_iphoneTests/SMIMEMailTest.swift

enzevalos_iphoneTests/phishing/MailComparisonTests.swift