Papermill: Feature Request: Dryrun

[MSeal]

It would be handy if we had a dryrun mode which parameterized a notebook and saved it to the output path without actually executing the cells. This would enable preparing notebooks for execution elsewhere or with alternative kernels in an upstream process. Should be relatively simple to add.

[betatim]

nitpick: might not call the command-line option --dry-run as I'd expect that to change absolutely nothing on disk, not even write a new notebook. Maybe --prepare or some such?

[rgbkrk]

--apply-parameters?

[MSeal]

--prepare or --apply-parameters both sounds reasonable... perhaps --parameterize, --params-only, or --no-execute as some other possibilities