Remplacement des vcl_acos(-1) par M_PI

Code/BasicFilters/otbInverseLogPolarTransform.txx

Code/BasicFilters/otbLogPolarTransform.txx

Testing/Code/BasicFilters/otbInverseLogPolarTransform.cxx

Testing/Code/BasicFilters/otbLogPolarTransform.cxx

Testing/Code/Common/otbPathListToHistogramGenerator.cxx

.../Code/FeatureExtraction/otbBreakAngularPathListFilter.cxx

Testing/Code/FeatureExtraction/otbCompacityPathCircle.cxx

Testing/Code/FeatureExtraction/otbCompacityPathRectangle.cxx

Testing/Code/FeatureExtraction/otbCompacityPathSquare.cxx

Testing/Code/FeatureExtraction/otbLinkPathListFilter.cxx

Testing/Code/FeatureExtraction/otbOrientationPath.cxx

Testing/Code/FeatureExtraction/otbRoadExtractionFilter.cxx