10498: --create-workflow and --create-template do the same thing, depending on -...

10498: --create-workflow and --create-template do the same thing, depending on --api choice.

Also:

* --update-workflow works for pipeline templates, too.

* --update-workflow establishes --api=jobs or --api=containers
  depending on the UUID. (If this conflicts with an explicit --api
  argument, that is an error.)

* If no --project-uuid is given, the user's UUID is not passed
  explicitly with create/update requests. The API will default to the
  user's UUID or (when updating an existing object) leaving the
  existing object's owner unchanged.