ClusterBus should report status

[scothis]

Expected Behavior

The ClusterBus resources should have status similar to the Bus resource.

Actual Behavior

The ClusterBus status is empty

Steps to Reproduce the Problem

1. create a ClusterBus
2. check it's status

Additional Info

eventing/pkg/controller/clusterbus/controller.go

Lines 438 to 458 in 5cec8a6

	func (c *Controller) updateClusterBusStatus(
	clusterBus *channelsv1alpha1.ClusterBus,
	dispatcherService *corev1.Service,
	dispatcherDeployment *appsv1.Deployment,
	provisionerDeployment *appsv1.Deployment,
	) error {
	// NEVER modify objects from the store. It's a read-only, local cache.
	// You can use DeepCopy() to make a deep copy of original object and modify this copy
	// Or create a copy manually for better performance
	clusterBusCopy := clusterBus.DeepCopy()
	// Only update if status has changed
	if !equality.Semantic.DeepEqual(clusterBus.Status, clusterBusCopy.Status) {
	// If the CustomResourceSubresources feature gate is not enabled,
	// we must use Update instead of UpdateStatus to update the Status block of the ClusterBus resource.
	// UpdateStatus will not allow changes to the Spec of the resource,
	// which is ideal for ensuring nothing other than resource status has been updated.
	_, err := c.clusterbusclientset.ChannelsV1alpha1().ClusterBuses().Update(clusterBusCopy)
	return err
	}
	return nil
	}