changing function names

src/faust_linear_operator/CPU/faust_MatDense.hpp

src/faust_linear_operator/CPU/linear_algebra.hpp

src/faust_linear_operator/cblas_algebra.cpp

src/faust_linear_operator/cblas_algebra.h

src/faust_linear_operator/faust_cblas_algebra.cpp

src/faust_linear_operator/faust_cblas_algebra.h