* Introduced base-class for assessment sections ** Generalization is used by both DikeAssessmentSection and DuneAssessmentSection ** Generalized DikeAssessmentSectionNodePresenter and DikeAssessmentSectionProperties to work with AssessmentSectionBase instances. Related to Issue [WTI-166] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@871 5a3db67b-de53-47b5-99c8-a1c30a6650e2