[SPIKE] Add ability to download all children for a parent object in DCS

[motropuk]

Story

As an end user of DCS I would like to be able to download all child objects for a parent object in DCS via the blacklight interface. At the moment you can export an entire parent object via the Download as PDF option. However, end users have expressed a wish to be able to download all child objects as jpegs. See example of how this works at another org https://www.aaa.si.edu/collections/roy-de-forest-papers-9298/series-7/box-8-folder-1

Also discuss/investigate what the download service is doing. Does this require auth, so that bots don't mass download?

For this ticket, consider how this would be designed and implemented in DCS. Then write follow up ticket to implement work.

Acceptance

• [x] Schedule discussion (after standup Wed 3/30)
• [ ] Create design for how end users would select between single child or multiple child download in Blacklight
• [ ] Create ticket to implement resulting design

[DraxIndustries79]

Notes from 3/30:

• Zip download is preferable to email or large file delivery
• This is a nice-to-have, so Jonathan feels if it turns out to be a lot of work we should deprioritize it
• Mike sees this as significant and potentially derailing other work
• Put on the back burner, but we should discuss this and the tiff download to see what the major components are; maybe a brainstorming meeting to think of an efficient way to achieve this

[motropuk]

Another good example of download options, including download all https://repository.duke.edu/dc/earlymss/emsar01018

[AKFosterDev]

Based on Jonathan's April 6th comment regarding the Duke University download all as a zip option - I found the corresponding code in their repository.

[motropuk]

Would like to resurface during next sprint