Better agent configuration, and added Site metrics in addition to App metrics

 - Moved agent config to the yml file
 - Renamed agent "TruViewAgent"
 - Moved app metrics to "Component/Apps/..."
 - Put site metrics in "Component/Sites/..."
 - Added abstraction layer to getVpmMetrics function for Apps vs Sites
 - Using "Oracle" app instead of "VNS-ERP Web" so the %20 doesn't show up everywhere