REFAC class otb class inheritance and method overloading to clean code.

Code/BasicFilters/otbLabelObjectOpeningMuParserFilter.h

Code/BasicFilters/otbLabelObjectOpeningMuParserFilter.txx

Code/BasicFilters/otbRelabelComponentImageFilter.h

Code/BasicFilters/otbRelabelComponentImageFilter.txx

Code/OBIA/otbBandsStatisticsAttributesLabelMapFilter.h

Code/OBIA/otbBandsStatisticsAttributesLabelMapFilter.txx

Code/OBIA/otbLabelMapToLabelImageFilter.txx

Code/OBIA/otbShapeAttributesLabelMapFilter.h

Code/OBIA/otbShapeAttributesLabelMapFilter.txx