Most commands use either a kind, or a more readable spelling of a
kind, in their output. To make this easier, this centralises the
definition of those names in one place, and lets the command
implementations choose whichever they need.
Signed-off-by: Michael Bridgen <michael@weave.works>
This adds all the standard subcommands for the ImageRepository type.
Following `source`, I have put them under a namespace: `auto`,
referring to automation.
NB For `create` I use controllerutil.CreateOrUpdate, which looks to me
like a slightly more rounded version of the upsert* funcs.
Signed-off-by: Michael Bridgen <michael@weave.works>