anchor.diff:  Here is an example of a full agent subsystem configuration that defines a remote Prometheus endpoint and the metrics
   to be collected from that endpoint:
   
  -
  -````
  +```xml
   <subsystem xmlns="urn:org.hawkular.agent:agent:1.0" enabled="true">
       <diagnostics enabled="true" interval="1" reportTo="LOG" timeUnits="minutes"/>
       <storage-adapter type="HAWKULAR" serverOutboundSocketBindingRef="hawkular" username="jdoe" password="password"/>
  
positive.code: that houses the agent, edit its standalone.xml configuration file and add one or more <remote-prometheus> elements
  in the <managed-servers> section of the agent subsystem:
  
  ````
  <remote-prometheus name="My Remote Prometheus Endpoint"
                     enabled="true"
                     url="http://my-prometheus-endpoint:9090/metrics"
                     interval="30"
                     timeUnits="seconds" />
  ````
  
  This tells the agent to periodically scrape the metric data from that remote PRometheus endpoint and whatever metrics
  it finds will be pushed to Hawkular Metrics.
  
negative.code:                            timeUnits="seconds" />
      </managed-servers>
  </subsystem>
  ```
  
  The above configuration tells the agent to scrape the given Prometheus endpoint URL every 30 seconds and
  store all the metrics with the name "evaluation_failures_total" or with a name that matches
  