ENH : texture functor base + energy correction + entropy

...BasicFilters/otbFunctionWithNeighborhoodToImageFilter.txx

...mmon/otbUnaryFunctorNeighborhoodWithOffsetImageFilter.txx

Code/FeatureExtraction/otbEnergyTextureFunctor.h

Code/FeatureExtraction/otbEnergyTextureImageFunction.txx

Code/FeatureExtraction/otbEntropyTextureFunctor.h

Code/FeatureExtraction/otbEntropyTextureImageFunction.h

Code/FeatureExtraction/otbEntropyTextureImageFunction.txx

Code/FeatureExtraction/otbTextureFunctorBase.h

Testing/Code/FeatureExtraction/CMakeLists.txt

.../Code/FeatureExtraction/otbEnergyTextureImageFunction.cxx

...de/FeatureExtraction/otbEnergyTextureImageFunctionNew.cxx

...Code/FeatureExtraction/otbEntropyTextureImageFunction.cxx

...e/FeatureExtraction/otbEntropyTextureImageFunctionNew.cxx

...ng/Code/FeatureExtraction/otbFeatureExtractionTests11.cxx