Rename french/py-grammalecte -> french/py-grammalecte-fr

Quotting reporter:
The name of this package appears to be Grammalecte-fr [1]. Even though its not
listed in PyPI (CHEESESHOP) yet, if it ever is uploaded/registered there,
that's what its name will be.

[1] setup.py: name='Grammalecte-fr',

Reported by: koobs