Offer downloadable metadata package alongside raw files.

[kfogel]

Along with files, rclone/SFTP could download a metadata package that has all the metadata that the user has added (i.e., via the Permanent web UI) corresponding to those files. Then one day we could support upload/sync of that metadata. It would be in a file named .permanent-metadata.json or something like that.

[kfogel]

Note that this could affect the user's need to use the --create-empty-src-dirs with rclone, since now (from rclone's point of view) the directories wouldn't be empty anymore.

[slifty]

Just to clarify on the above observation -- we talked about the idea of potentially creating some kind of gitkeep equivalent for folders (or metadata for folders / archives).

This issue as written is more focused on file metadata (which, if a file exists, the folder would already be non-empty)