Rename module FaustPy to pyfaust.

gen_doc/CMakeLists.txt

gen_doc/Doxyfile.in

gen_doc/bin_pkgs/README_template.html

misc/test/src/Python/test_FaustPy.py

misc/test/src/Python/test_pyFaust.py

misc/test/src/Python/test_pyFaust_time.py

misc/test/src/Python/test_sparse_faust_size_vs_rc.py

wrapper/python/CMakeLists.txt

wrapper/python/pyfaust.py

wrapper/python/quickstart.py