BUG: pass string by const reference

Code/Common/otbCommandLineArgumentParser.cxx

Code/Common/otbCommandLineArgumentParser.h

Code/Common/otbDataNode.h

Code/Common/otbDataNode.txx

Code/Common/otbGISTable.h

Code/Common/otbGISTable.txx

Code/Common/otbRemoteSensingRegion.h

Code/Common/otbVectorData.h

Code/Common/otbVectorData.txx

Code/Common/otbVectorDataToImageFilter.h

Code/Fuzzy/otbVectorDataToDSValidatedVectorDataFilter.h

Code/Fuzzy/otbVectorDataToDSValidatedVectorDataFilter.txx

Code/IO/otbGDALImageIO.cxx

Code/IO/otbGDALImageIO.h

Code/IO/otbKMLVectorDataIO.h

Code/IO/otbKMLVectorDataIO.txx

Code/IO/otbKmzProductWriter.h

Code/IO/otbKmzProductWriter.txx

Code/IO/otbOSMDataToVectorDataGenerator.cxx

Code/IO/otbOSMDataToVectorDataGenerator.h