Json ElementRef

This structure is used several places in QDDT, it is a reference to a entity revision and it usually have name and version to be used in "content lists". if **element ** field is empty, backend has to be queried with kind/id/revision to fetch the content.

{
  "elementKind" : "QUESTION_ITEM",
  "elementId" : "8b85b739-c30c-4bef-bf79-e3ca20099e3f",
  "elementRevision" : 16,
  "name" : "Q001",
  "version" : { major: 1, minor: 0, versionLabel: "", revision: 16} ,   
  "element" : {…} 
}