Added testutil projects for test classes / factories of Primitives in Piping and MacroStability - Moved primitive related test objects / factories to the correct namespace for piping - Added NUnit to the projects - Cleaned up unused references Related to Issue [WTI-1341] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@11655 5a3db67b-de53-47b5-99c8-a1c30a6650e2