Fix setup.py to fall back to generated file
Fix setup.py to fall back to generated file

When you install python-vlc using pip or a similar package manager, you
won't have access to VLC files so you can't generate a fresh vlc.py.
However, the project itself ships a reasonably updated pre-generated
vlc.py that we can fall back to.

Signed-off-by: Olivier Aubert <1a73af9e7ae00182733b2292511b814be66f065f@olivieraubert.net>

oaubert/python-vlc,oaubert/python-vlc