Modified UI for: Made RequiredSafetyFactorStabilityInnerSlope, RequiredSafetyFactorStabilityOuterSlope, RequiredSafetyFactorPiping, UpliftCriterionStability and UpliftCriterionPiping required in xsd/DamLocation.xsd Set defaults when not specified in import.
Refactored: use type double instead of double? for PlLineOffsetBelowDikeToeAtPolder, PlLineOffsetBelowDikeTopAtPolder, PlLineOffsetBelowDikeTopAtRiver and PlLineOffsetBelowShoulderBaseInside in UI. Related to Issue [MWDAM-1537]