Added PipingCalculationServiceConfig which can be used to reliably set a TestPipingSubCalculatorFactory on the PipingCalculationService while testing and removing it when done with testing. Related to Issue [WTI-383] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@2505 5a3db67b-de53-47b5-99c8-a1c30a6650e2