Clean up use of Faust namespace in EigTJ modules.

misc/test/src/C++/EigTJ.cpp.in

misc/test/src/C++/EigTJComplex.cpp.in

misc/test/src/C++/EigTJUtil.h

misc/test/src/C++/EigTJUtil.hpp

src/algorithm/factorization/faust_EigTJ.hpp

src/algorithm/factorization/faust_EigTJComplex.h

src/algorithm/factorization/faust_EigTJComplex.hpp

src/algorithm/factorization/faust_EigTJGen.h

src/algorithm/factorization/faust_EigTJGen.hpp

src/algorithm/factorization/faust_EigTJParallel.h

src/algorithm/factorization/faust_EigTJParallel.hpp

src/algorithm/factorization/faust_EigTJParallelComplex.h

src/algorithm/factorization/faust_EigTJParallelComplex.hpp

src/algorithm/factorization/faust_EigTJParallelGen.h

src/algorithm/factorization/faust_EigTJParallelGen.hpp