Corrections pour enlever les warning sous VC++ 7.1 lors de la compilation

Code/Common/otbCommandLineArgumentParser.cxx

Code/FeatureExtraction/otbFlusserImageFunction.txx

...eExtraction/otbPixelSuppressionByDirectionImageFilter.txx

Code/FeatureExtraction/otbTouziEdgeDetectorImageFilter.txx

Code/IO/otbImageBase.cxx

Code/Learning/otbSVMClassifier.txx

Code/Visu/otbGLVectorImageViewBase.txx

Code/Visu/otbPrincipalImageViewAS.txx

Examples/Learning/SVMPointSetClassificationExample.cxx

Examples/Learning/SVMPointSetExample.cxx

Testing/Code/FeatureExtraction/otbHarrisToPointSet.cxx