TEIIDDES-1619
Added VdbSourceInfo and VdbSource objects
Changed VdbModelEntry to manage multiple sources rather than single source, jndi & translator names
TEIIDDES-1620 re-arranged Models tab in VDB Editor
Moved most model info to ModelDetailsPanel
Refactored Data Roles panel info into DataRolesPanel
Added VDB validation check for multple sources but Multi-Source = false