GUI: move shared enums to 'GUI/Support/Data/ID.h'

Joins three homeless enums in GUI/Support/Data/ID.h

This resolves #447 (closed)

GUI/View/Job/JobView.cpp

@@ -65,7 +65,7 @@ void JobView::onFocusRequest(JobItem* jobItem)
         setActivityAndPresentationForNewJob(jobItem);
     }
 
-    emit focusRequest(GUI::ID::JOB);
+    emit focusRequest(GUI::ID::Job);
 }
 
 //! Sets docks visibility in accordance with required activity.