CORE-5301 Fix for duplicate move announcements.

Moved the success announcement from the DiskResourcesEventHandler to DiskResourceMoveCallback, since each data window will have its own handler, but only one callback handles the move service response.
Added diskResourceMoveSuccess display strings.
CORE-5301 Fix for updating saved searches in many windows.

Added an UpdateSavedSearchesEvent and its handler interface.
Updated DiskResourcesEventHandler to handle these events.
Updated TreeCellDefaultAppearance to fire this event when deleting a saved query.
Refactored the DataSearchPresenterImpl#updateDataNavigationWindow method to fire this event, and moved the TreeStore update logic into the DiskResourcesEventHandler#onUpdateSavedSearches method.
Removed the TreeStore field from DataSearchPresenterImpl.
Replaced the unused SearchAutoBeanFactory field with an EventBus field.
Updated DataSearchPresenterImplTest with these changes.
Refactored some of the TreeStore tests from DataSearchPresenterImplTest into a new DiskResourcesEventHandlerTest class.
CORE-5369 Removed obsolete testDoSubmitDiskResourceQuery_Case2.