* Add item decryption to encryptService
* Create multithreadEncryptService subclass to handle web workers
* Create encryption web worker
* Refactor cipherService to use new interface
* Update dependencies
* [EC-381] Deleted unused method clearCache from Settings Service
* [EC-381] Marked settings methods as obsolete on State service
* [EC-381] Using observables on settings service
* [EC-381] Added unit tests for Settings service
* [EC-381] Checking userId on clear
* [EC-381] Updated references to StateService activeAccountUnlocked$
* [EC-381] Updated getEquivalentDomains to return observable
* [EC-381] Updated settings service to user concatMap on activeAccountUnlocked$
* [EC-381] Renamed getEquivalentDomains to equivalentDomains
* [EC-381] Completing Behaviors on settings.service tests
* [EC-381] Removed unused settingsPrefix from settings service
* [EC-381] Removed equivalentDomains from settings service and added type AccountSettingsSettings
* [EC-381] Updated settings service settings$ to not be nullable
* [EC-381] Settings default to {}
