Added PipingCharacteristicPointsCsvReader which is responsible for reading characteristic points from csv files. Added test-data for the PipingCharacteristicPointsCsvReader. Added initial PipingCharacteristicPointsLocation which will contain the characteristic points for a location. Introduced StreamReaderHelper which contains helper methods for initializing a file reader. Related to Issue [WTI-126] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@2085 5a3db67b-de53-47b5-99c8-a1c30a6650e2