NewControllerManager creates a new ControllerManager which will manage (create/start/stop) GVR-specific controllers according to informers available in the provided InformerSource.

ControllerManager is a component that manages (create/start/stop) GVR-specific controllers according to available GVRs.

InformerSource is a dynamic source of informers per GVR, which notifies when informers are added or removed for some GVR.

ManagedController defines a controller that should be managed by a ControllerManager, to be started when the required GVRs are supported, and stopped when the required GVRs are not supported anymore.