cubicweb #320945 allow anonymous in remote access [deprecated]

We have to know the exact login/pass before connecting to a remote server. Could be possible to have some piece of magic here ? as a '__anonymous__' entry (or None) and let the framework retrieve the default connection ?

>>> cnx = connect(database='jpl', user=None, password=None)
>>> cnx = connect(database='jpl', user='__anonymous__', password='__anonymous__')
done in<not specified>
load left0.000
closed by<not specified>