Adds control and feedback for presentation source
Updates camera setup, selection and feedback
Adds ringtone volume control/feedback
Adds call hold/resume/join control to bridge
Adds new config properties for camera info
Adds IHasDoNotDisturbMode, IHasStandbyMode and IHasHalfWakeMode interfaces.
Implements all interfaces on CiscoSparkCodec class.
Adds CiscoCodecJoinMap to allow for bridging new Cisco specific functions.