message: Establish initial sort "descending by date added"
  See
diff: @@ -40,6 +40,8 @@ CesiumIonPanel::CesiumIonPanel() :
  {
  this->_connectionUpdatedDelegateHandle = FCesiumEditorModule::ion().ConnectionUpdated.AddRaw(this, &CesiumIonPanel::Refresh);
  this->_assetsUpdatedDelegateHandle = FCesiumEditorModule::ion().AssetsUpdated.AddRaw(this, &CesiumIonPanel::Refresh);
  + this->_sortColumnName = ColumnName_DateAdded;
  + this->_sortMode = EColumnSortMode::Type::Descending;
  }
  CesiumIonPanel::~CesiumIonPanel() {
  