STYLE: replace tabulation by spaces

Code/Common/otbConfigurationFile.h

Code/IO/otbImageFileReader.txx

Code/IO/otbTerraSarImageMetadataInterface.cxx

Code/Projections/otbGCPsToRPCSensorModelImageFilter.txx

Code/Projections/otbLeastSquareAffineTransformEstimator.h

Code/Projections/otbLeastSquareAffineTransformEstimator.txx

Code/Radiometry/otbTerraSarBrightnessImageFilter.h

Code/Radiometry/otbTerraSarCalibrationImageFilter.h

Code/Radiometry/otbTerraSarCalibrationImageFilter.txx

Code/Visualization/otbStandardImageViewer.txx

...ples/DisparityMap/EstimateAffineTransformationExample.cxx

Examples/OBIA/LabelMapToVectorData.cxx

...es/OBIA/otbRadiometricAttributesLabelMapFilterExample.cxx

Testing/Code/IO/otbTerraSarImageMetadataInterface.cxx

Testing/Code/Projections/otbSensorModel.cxx

...adiometry/otbTerraSarBrightnessImageComplexFilterTest.cxx

...diometry/otbTerraSarCalibrationImageComplexFilterTest.cxx

...Code/Radiometry/otbTerraSarCalibrationImageFilterTest.cxx