GrassCoverErosionInwards writer and exporter rewritten to make use of configurations. ConfigurationHydraulicLoadsCalculationTypeConverter extended with possiblity to convert DikeHeightCalculationType and OvertoppingRateCalculationType. Moved responsibility of determining what properties to export from the PipingCalculationConfigurationWriter to the PipingCalculationConfigurationExporter. Related to Issue [WTI-1221] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@10137 5a3db67b-de53-47b5-99c8-a1c30a6650e2