Add ability to create 'archival bundles'

[JBorrow]

For writing to backup, it would be helpful to have an archival bundler that:

• Tracks incoming files and once a limit of un-archived data is reached raises an alert
• That list can be used by an external tool to generate an archive bundle
• That archive bundle can be sent to tape/external disk/etc
• The archive bundle can be registered back in the database

[JBorrow]

Could even fully automate this process for globus- or mounted- accessible storage systems like: https://docs.nersc.gov/filesystems/archive/#globus