Reconcile changes for Tunnel Spec

[adyanth]

Currently if the Tunnel spec changes (image, caPool, etc), the corresponding resources are not updated unless they are manually deleted and left to be recreated. This should be handled by the operator.

Also, when recreating the configMap, the service reconciler should also be triggered to add the services back to it (if delete strategy is used).

[adyanth]

Deployment update currently only happens for the size. This should be made generic by calling the deploymentForTunnel for updates as well.