Added a force matlab flag to each function

src/MATLAB/+ImProc/AddConstant.m

src/MATLAB/+ImProc/AddImageWith.m

src/MATLAB/+ImProc/ApplyPolyTransformation.m

src/MATLAB/+ImProc/ContrastEnhancement.m

src/MATLAB/+ImProc/EntropyFilter.m

src/MATLAB/+ImProc/GaussianFilter.m

src/MATLAB/+ImProc/Histogram.m

src/MATLAB/+ImProc/ImagePow.m

src/MATLAB/+ImProc/LinearUnmixing.m

src/MATLAB/+ImProc/LoG.m

src/MATLAB/+ImProc/MarkovRandomFieldDenoiser.m

src/MATLAB/+ImProc/MaxFilterEllipsoid.m

src/MATLAB/+ImProc/MaxFilterKernel.m

src/MATLAB/+ImProc/MaxFilterNeighborhood.m

src/MATLAB/+ImProc/MeanFilter.m

src/MATLAB/+ImProc/MedianFilter.m

src/MATLAB/+ImProc/MinFilterEllipsoid.m

src/MATLAB/+ImProc/MinFilterKernel.m

src/MATLAB/+ImProc/MinFilterNeighborhood.m

src/MATLAB/+ImProc/MinMax.m