Provide supported dive computer list on the command line
and actually call the cli download. Still not functional.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
Right now this doesn't do a thing, but it gives us a nice target that
has far fewer dependencies and should contain enough parts to download
stuff from a divecomputer and then sync that with cloud storage.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>