Add gluon-alfred and gluon-alfred-ffmap

gluon-alfred simply configures the alfred package from the routing feed to work with the gluon network setup.
gluon-alfred-ffmap sends the hostname and gps coordinates via alfred, so they can be picked up by some host that wants to draw the ffmap (using for example https://github.com/tcatm/ffmap-backend)

Maybe gluon-alfred-ffmap can be extended to send even more information like IP addresses or traffic statistics.