migrating service webhook to controller p2
migrating service webhook to controller p3. add tests
Using an abstract reconciler to avoid copy/paste code
update tests. remove service_labels webhook. fix bug in sync labels\endpoint func
apply review notes
disable EndpointSlicesLabelsReconciler for kubernetes versions <=1.16
Co-authored-by: Maksim Fedotov <m_fedotov@wargaming.net>
