Define and apply HPCC autodiscovery annotation

Eclwatch/ESP(in general) might be interested in linking to services defined outside of our chart.

For example, ECLWatch can embed a link to prometheus/grafana interface in order to expose HPCC metrics. The prometheus/grafana service would be required to declare the appropriate annotation for auto discovery by HPCC via k8s APIs, which would then provide connection information to interested clients (ECLWatch)

Another example is Elastic Search which Eclwatch might want to link in order to expose hpcc component logs.

proposed annotation: hpcc.<component>.<action>/<paramname>: <value>

eg hpcc.eclwatch.link/enabled: true

     hpcc.eclwatch.link/path: "/some/kibana/path/overwrite?index=zyz;dashboard=somedash"