Added AvailableDikeProfiles to the GrassCoverErosionInwardsCalculationGroupContext. Added context menu item for GrassCoverErosion root calculation group for generating scenarios based on dike profiles. Related to Issue [WTI-634] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@3749 5a3db67b-de53-47b5-99c8-a1c30a6650e2