Fix some headers inclusion

app/Algorithms/ClassAnalysis.cpp

app/Algorithms/Pyramid.cpp

app/Operations/EntropyOp.cpp

app/Operations/Huffman.cpp

app/Operations/MICD.cpp

app/Operations/Quantification.cpp

app/Operations/RotateOp.cpp

app/Operations/SignalToNoiseOp.cpp

app/Operations/SinusSynthesisOp.cpp

app/Operations/ZeroCrossingOp.cpp

core/ImgParam.cpp

core/PlugOperation.cpp