Add queryMetrics and queryMetricsTimeRange methods to NumericMetricData factory.
Add queryMetrics and queryMetricsTimeRange methods to NumericMetricData factory.

hawkular/hawkular-ui-services,vrockai/hawkular-ui-services,ammendonca/hawkular-ui-services,Jiri-Kremser/hawkular-ui-services,ppalaga/hawkular-ui-services,Jiri-Kremser/hawkular-ui-services,vrockai/hawkular-ui-services,lucasponce/hawkular-ui-services,pavolloffay/hawkular-ui-services,hawkular/hawkular-ui-services,ammendonca/hawkular-ui-services,pavolloffay/hawkular-ui-services,ppalaga/hawkular-ui-services,jpkrohling/hawkular-ui-services,lucasponce/hawkular-ui-services,jpkrohling/hawkular-ui-services