Extracted TestPipingInput and moved to separate project. Added test to verify piping calculation and node update.Related to Issue [WTI-18]git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@249 5a3db67b-de53-47b5-99c8-a1c30a6650e2Former-commit-id: 95d839389fb1603d4a85082919c23ce211a89e09