Implemented local opener and closure

src/MATLAB/+ImProc/+Local/Closure.m

src/MATLAB/+ImProc/+Local/Opener.m

src/MATLAB/+ImProc/@Cuda/Closure.m

src/MATLAB/+ImProc/@Cuda/ElementWiseDifference.m

src/MATLAB/+ImProc/@Cuda/EntropyFilter.m

src/MATLAB/+ImProc/@Cuda/Gaussian.m

src/MATLAB/+ImProc/@Cuda/HighPassFilter.m

src/MATLAB/+ImProc/@Cuda/LoG.m

src/MATLAB/+ImProc/@Cuda/MeanFilter.m

src/MATLAB/+ImProc/@Cuda/MedianFilter.m

src/MATLAB/+ImProc/@Cuda/MinFilter.m

src/MATLAB/+ImProc/@Cuda/MultiplySum.m

src/MATLAB/+ImProc/@Cuda/Opener.m

src/MATLAB/+ImProc/@Cuda/StdFilter.m

src/MATLAB/+ImProc/Closure.m

src/MATLAB/+ImProc/ElementWiseDifference.m

src/MATLAB/+ImProc/EntropyFilter.m

src/MATLAB/+ImProc/Gaussian.m

src/MATLAB/+ImProc/HighPassFilter.m

src/MATLAB/+ImProc/LoG.m