Enabled 9 algorithms compatible with OpenCV 4.x

bgslibrary/algorithms/FuzzyChoquetIntegral.cpp

bgslibrary/algorithms/FuzzyChoquetIntegral.h

bgslibrary/algorithms/FuzzySugenoIntegral.cpp

bgslibrary/algorithms/FuzzySugenoIntegral.h

bgslibrary/algorithms/IndependentMultimodal.cpp

bgslibrary/algorithms/IndependentMultimodal.h

bgslibrary/algorithms/KDE.cpp

bgslibrary/algorithms/KDE.h

bgslibrary/algorithms/LBAdaptiveSOM.cpp

bgslibrary/algorithms/LBAdaptiveSOM.h

bgslibrary/algorithms/LBFuzzyAdaptiveSOM.cpp

bgslibrary/algorithms/LBFuzzyAdaptiveSOM.h

bgslibrary/algorithms/LBFuzzyGaussian.cpp

bgslibrary/algorithms/LBFuzzyGaussian.h

bgslibrary/algorithms/LBSimpleGaussian.cpp

bgslibrary/algorithms/LBSimpleGaussian.h

bgslibrary/algorithms/VuMeter.cpp

bgslibrary/algorithms/VuMeter.h

bgslibrary/algorithms/algorithms.h

bgslibrary/algorithms/lb/BGModelSom.h