Added tests for SoilProfile1DReader, SoilProfile2DReader and CriticalProfileProperties. Improved documentationRelated to Issue [WTI-27]git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@715 5a3db67b-de53-47b5-99c8-a1c30a6650e2Former-commit-id: c7584fa04d2255bae0ad3220d889e30a4a6be2e3