Extended MacroStabilityInwardsCalculationConfigurationReaderTest with scenarios to test: - Duplicate elements Related to Issue [WTI-1294]git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@12580 5a3db67b-de53-47b5-99c8-a1c30a6650e2Former-commit-id: 97e9f8248823f816650b96d91e9ceb263690ae05Former-commit-id: 21864d89bb91f536ca2d8e239e7d99b7a7ec46d9