Support for Server Side Apply

[csviri]

Add server side apply api to UpdateControl.

https://kubernetes.io/docs/reference/using-api/server-side-apply/

issue in fabric8 client: fabric8io/kubernetes-client#3334

[csviri]

Original idea was to add support for server side apply in UpdateControl, but then realized that this does not make much sense for controllers own resource. Closing this issue.