message: added nodes without any dependencies in serviceMap
diff: @@ -647,7 +647,7 @@ func GetServiceMapDependencies(client *SqlClient, query *model.GetServicesParams
  retMe := make([]ServiceMapDependencyResponseItem, 0, len(serviceMap))
  for _, dependency := range serviceMap {
  - if dependency.Parent == dependency.Child || dependency.Parent == "" {
  + if dependency.Parent == "" {
  continue
  }
  retMe = append(retMe, *dependency)
  