Butler operator health status

[cpgo]

Update routed column on v2deployments table on each reconcile loop.
If all desired components+circles are found on the observed state we set the column to true.

To make it easier to perform de "diff" of the observed stated and desired state I introduced a new annotation to the VirtualService and DestinationRule manifests.

annotations: {
  circles: '["some-circle-id", "another-circle-id"]'
 }

Since the annotation fields can only be a key/value pair of strings we have to json encode the circle id list to a string, and decode it when reading the field. This will also be relevant when discussing a future feature to add user defined metadata to the deployments.