WorkflowPersistenceManagerImpl#createNodeByWorkflow(Node folderNode, String nodeTypeName, String name) does not take into account whether it should create a normal new-folder or a new-translated-folder

We should improve as follows (Thx Frank for helping)

Instead of

category = folderAdditionWorkflowCategory; where folderAdditionWorkflowCategory = "new-folder" we must:

1) From FolderWorkflow fwf get the hints()
2) from hints() get the object for 'prototypes'
3) This is a map. Search the map for the value 'hippostd:folder'
4) The key belonging to that value must be the folderAdditionWorkflowCategory

if multiple keys are found for (4) I think we cannot do better then just pick one...?