Added ViewInfo definition for HeightStructuresScenarioView. Added tests for the HeightStructures scenario view. Extended HeightStructureHelper with methods to synch scenario's after Delete and Update of structures and for collection calculations defined for a section. Related to Issue [WTI-587] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@5878 5a3db67b-de53-47b5-99c8-a1c30a6650e2