Added IHydraRingFileParser implemented by the ExceedanceProbabilityCalculationParser and TargetProbabilityCalculationParser which is used by the HydraRingCalculationService to parse generated output files. Moved responsibility of checking output to the GrassCoverErosionInwardsCalculationService, HeightStructuresCalculationService and DesignWaterLevelCalculationService. Related to Issue [WTI-666] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@3951 5a3db67b-de53-47b5-99c8-a1c30a6650e2