Implement the optimization of eye faust in C++ core and bind it into pyfaust.

src/algorithm/factorization/faust_ParamsFGFT.hpp

src/faust_linear_operator/CPU/faust_MatDense.h

src/faust_linear_operator/CPU/faust_MatDense.hpp

src/faust_linear_operator/CPU/faust_MatSparse.hpp

src/faust_linear_operator/CPU/faust_Transform.hpp

src/faust_linear_operator/CPU/faust_TransformHelper.h

src/faust_linear_operator/CPU/faust_TransformHelper.hpp

src/faust_linear_operator/CPU/faust_linear_algebra.hpp

src/faust_linear_operator/faust_MatGeneric.h

src/faust_linear_operator/faust_MatGeneric.hpp

wrapper/python/pyfaust.py

wrapper/python/src/FaustCoreCpp.h

wrapper/python/src/FaustCoreCpp.hpp

wrapper/python/src/FaustCoreCy.pxd

wrapper/python/src/_FaustCorePy.pyx