ENH: Turning CloudDetection into CloudEstimator

Code/BasicFilters/otbCountImageFilter.h

Code/BasicFilters/otbCountImageFilter.txx

Code/BasicFilters/otbCountImageFunction.h

Code/BasicFilters/otbPointSetDensityFunction.h

Code/BasicFilters/otbPointSetDensityFunction.txx

Code/BasicFilters/otbPointSetFunction.h

Code/BasicFilters/otbPointSetFunction.txx

Code/BasicFilters/otbPointSetToDensityImageFilter.h

Code/BasicFilters/otbPointSetToDensityImageFilter.txx

Code/BasicFilters/otbUnaryFunctorObjectListFilter.h

Code/BasicFilters/otbUnaryFunctorObjectListFilter.txx

Code/FeatureExtraction/otbSiftFastImageFilter.txx

Code/FeatureExtraction/otbSimplePointCountStrategy.h

Code/IO/otbMetaDataKey.h

Testing/Code/BasicFilters/CMakeLists.txt

Testing/Code/BasicFilters/otbBasicFiltersTests11.cxx

Testing/Code/BasicFilters/otbCountImageFunctionTest.cxx

.../Code/BasicFilters/otbImagePCAShapeModelEstimatorTest.cxx

Testing/Code/BasicFilters/otbPointSetDensityFunctionNew.cxx

Testing/Code/BasicFilters/otbPointSetDensityFunctionTest.cxx