ENH: make it compile against trunk, use backported StreamingStatisticsVectorImageFilter

Application/otbHyperspectralUnmixing.cxx

Code/BasicFilters/otbConcatenateScalarValueImageFilter.h

Code/BasicFilters/otbConcatenateScalarValueImageFilter.txx

...sicFilters/otbFastICAInternalOptimizerVectorImageFilter.h

Code/BasicFilters/otbNormalizeVectorImageFilter.h

Code/BasicFilters/otbNormalizeVectorImageFilter.txx

Code/BasicFilters/otbStreamingMinMaxImageFilter2.h

Code/BasicFilters/otbStreamingMinMaxImageFilter2.txx

Code/BasicFilters/otbStreamingStatisticsVectorImageFilter2.h

...BasicFilters/otbStreamingStatisticsVectorImageFilter2.txx

Code/BasicFilters/otbUnaryFunctorVectorImageFilter.txx

Code/Hyperspectral/otbFastICAImageFilter.h

Code/Hyperspectral/otbMNFImageFilter.h

Code/Hyperspectral/otbNAPCAImageFilter.h

Code/Hyperspectral/otbPCAImageFilter.h

Code/Hyperspectral/otbPCAImageFilter.txx

Code/Vahine/CovPixelSelectFilter.h

Code/Vahine/ElmVcaFilter.h

Code/Vahine/TikonovFilter.h

Testing/CMakeLists.txt