Renamed ImProc to HSP so that it matches the name Hydra Signal Processor

src/MATLAB/+HSP/MinFilter.m

src/MATLAB/+HSP/MinMax.m

src/MATLAB/+HSP/MultiplySum.m

src/MATLAB/+HSP/Opener.m

src/MATLAB/+HSP/StdFilter.m

src/MATLAB/+HSP/Sum.m

src/MATLAB/+HSP/TESLA-LITE.mat

src/MATLAB/+HSP/VarFilter.m

src/MATLAB/+HSP/WAITE-WW1.mat

src/MATLAB/+HSP/WienerFilter.m

src/MATLAB/+Performance/AddConstant.m

src/MATLAB/+Performance/AddImageWith.m

src/MATLAB/+Performance/Closure.m

src/MATLAB/+Performance/ClosureGraph.m

src/MATLAB/+Performance/EntropyFilter.m

src/MATLAB/+Performance/GaussianFilter.m

src/MATLAB/+Performance/GaussianFilterGraph.m

src/MATLAB/+Performance/HighPassFilter.m

src/MATLAB/+Performance/HighPassFilterGraph.m

src/MATLAB/+Performance/MaxFilter.m