Adjust ID generation of the X(G)ML elements:- Lessened constraints on the intermediate model, as empty assessment section id's are allowed by the RT data modelWTI-1803
Adjust ID generation of the X(G)ML elements:- Changed ID generation for the SerializableAsssessmentSection: ID should be the same as the assessment section ID, prefixed with WksWTI-1803
Adjust ID generation of the X(G)ML elements:- Added assessment section id to the exportable assessment section to retrieve the ID information when exporting the "Waterkeringstelsel" (SerializableAssessmentSection).WTI-1803
