call: video sink per media

Ring/Ring.xcodeproj/project.pbxproj

Ring/Ring/Bridging/CallsAdapter.h

Ring/Ring/Bridging/CallsAdapter.mm

Ring/Ring/Bridging/Utils.h

Ring/Ring/Bridging/Utils.mm

Ring/Ring/Bridging/VideoAdapter.h

Ring/Ring/Bridging/VideoAdapter.mm

Ring/Ring/Calls/ButtonsContainerView.swift

Ring/Ring/Calls/ButtonsContainerView.xib

Ring/Ring/Calls/ButtonsContainerViewModel.swift

Ring/Ring/Calls/CallViewController.storyboard

Ring/Ring/Calls/CallViewController.swift

Ring/Ring/Calls/CallViewModel.swift

Ring/Ring/Calls/Conference/ConferenceMenuItemsManager.swift

Ring/Ring/Calls/Conference/ContactPickerSection.swift

...g/Calls/Conference/ContactPickerViewController.storyboard

Ring/Ring/Calls/Conference/ContactPickerViewController.swift

Ring/Ring/Calls/Conference/ContactPickerViewModel.swift

...ng/Calls/Conference/SwiftUI/Models/ActionsViewModel.swift

...ls/Conference/SwiftUI/Models/ConferenceActionsModel.swift