New way of persisting: - Made use of partial character of Entities for reading and Extensions methods for creating and updating from domain model objects - Separated Create/Update/Read methods - Introduced collectors for post-create/read/update actions Added persistence for StochasticSoilModel, StochasticSoilProfile, PipingSoilProfile and PipingSoilLayer. Related to Issue [WTI-290] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@3020 5a3db67b-de53-47b5-99c8-a1c30a6650e2