392120: Implement Generic EMF Connector and UI

Change-Id: If8b40674b45626c3902cd3ca7970d8f0cbed6520
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=392120
395230: Implement Example Emf Connector based on Generic Emf Connector

Change-Id: I48432371d7249a6a3fbf48d0f5e200d4bfea9220
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=395230