ENH : add filterWithOffsetfunctor + energy texture functor

...Common/otbUnaryFunctorNeighborhoodWithOffsetImageFilter.h

...mmon/otbUnaryFunctorNeighborhoodWithOffsetImageFilter.txx

Code/FeatureExtraction/otbEnergyTextureFunctor.h

Testing/Code/Common/CMakeLists.txt

Testing/Code/Common/otbCommonTests7.cxx

...mmon/otbUnaryFunctorNeighborhoodWithOffsetImageFilter.cxx

...n/otbUnaryFunctorNeighborhoodWithOffsetImageFilterNew.cxx

Testing/Code/FeatureExtraction/CMakeLists.txt

Testing/Code/FeatureExtraction/otbEnergyTextureFunctor.cxx

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