Ajout des filtres de supressions de pixels du framework d'extraction de route.

Code/FeatureExtraction/otbNonMaxRemovalByDirectionFilter.h

Code/FeatureExtraction/otbRemoveIsolatedByDirectionFilter.h

Code/FeatureExtraction/otbRemoveWrongDirectionFilter.h

Testing/Code/FeatureExtraction/CMakeLists.txt

Testing/Code/FeatureExtraction/otbFeatureExtractionTests.cxx

...e/FeatureExtraction/otbNonMaxRemovalByDirectionFilter.cxx

...eatureExtraction/otbNonMaxRemovalByDirectionFilterNew.cxx

.../FeatureExtraction/otbRemoveIsolatedByDirectionFilter.cxx

...atureExtraction/otbRemoveIsolatedByDirectionFilterNew.cxx

.../Code/FeatureExtraction/otbRemoveWrongDirectionFilter.cxx

...de/FeatureExtraction/otbRemoveWrongDirectionFilterNew.cxx