[FEAT] Full CRUD interface for artpieces

[tsdobbs]

The app at /print should be able to handle all CRUD operations (except for Create, obviously) for artpieces. Currently it only displays unprinted artpieces and advances them through the process. As soon as a piece is selected, it disappears from the interface, but you may need to re-print or otherwise update.

Need to add an option to show older artpieces on interface as well, and the ability to delete or update data for admins