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Hello everybody!I am currently writing a Cordova Native Plugin for Contact Synchronisation on Android and iOS.The existing one is not enough, because it just allows you to add, edit and delete local on-device contacts.My requirement is to add "Contact Providers" like Facebook or Viber, which means that I want to adda seperate group of contacts,that is not editableand defined with our own name and icon.During my research i found this unanswered stackoverflow question and this mainly unanswered apple developer forum entry.Both want to accomplish the same, but neither has found a solution.The Android-version of the plugin is working, but it seems that an API to create CNContainers is not available on iOS.I really hope that I just do not find the API, but it is exposed by Apple!Thank you very much in advance,Bernhard