Added IStochasticSoilModelUpdateStrategy which is used to differentiate between the two update strategies after importing stochastic soil models. Implemented StochasticSoilModelReplaceData as one of the two strategies. Created incorrect and unused implementation of StochasticSoilModelUpdateData strategy, to be improved later. Related to Issue [WTI-1070] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@7873 5a3db67b-de53-47b5-99c8-a1c30a6650e2