PLCgen crashes on invalid I/O table files

Method org.eclipse.escet.cif.plcgen.generators.InputOutputGenerator.getCsvLines invokes org.eclipse.escet.common.java.CsvParser.getLine, which may give a org.eclipse.escet.common.java.CsvParser.CsvParseError, but this is not caught, and thus leads to a crash for invalid CSV files, rather than being wrapped with a proper message and leading to an end user error.