Added IDataReaderExtensions with a helper method for reading a column with a certain type using conversions. Added ConversionException thrown when that helper method encounters an error. Added documentation for the ConversionException/CriticalFileReadException propagation path. Added test for when trying to convert values from database with invalid schema. Related to Issue [WTI-948] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@6526 5a3db67b-de53-47b5-99c8-a1c30a6650e2