Added PipingOutput to PipingData as a result of the calculation. PipingDataNodeController now creates a PipingOutput and add this to the PipingData if the calculation was succesful. Related to Issue [WTI-18] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@91 5a3db67b-de53-47b5-99c8-a1c30a6650e2