* The Hurricane python module was not compiled at all. The name of
Python module wrappers is a bit inconsistent:
isobar --> Hurricane
crlcore --> CRL
anabatic --> Anabatic
katana --> Katana
* Use "py_mod_deps" and not only "py_deps" so the __PYTHON_MODULE__
flag is used for py.extension_module().
* In cumulus, the "cumulus" directory is not used for the installation
in site-packages/coriolis/.
* In designflow/pnr.py, temporarily disable Tramontana & Tutorial,
until they are ported to meson.