NewBroadcaster Creates a new event broadcaster.

EventSinkImpl wraps EventInterface to implement EventSink.

EventBroadcaster knows how to receive events and send them to any EventSink, watcher, or log.

EventRecorder knows how to record events on behalf of an EventSource.

EventSink knows how to store events (client-go implements it.) EventSink must respect the namespace that will be embedded in 'event'.