[ALS-5632] Add comma separated study whitelist in stage file

[srpiatt]

• Add a parameter in the stage deployment config file to add studies that can be added to the open-data studies tab in SWB ui, even if the study is not part of the default filtered open-data study tags.

Checklist:

• Have you successfully tested with your changes locally?
• Have you successfully deployed to an AWS account with your changes?

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[srpiatt]

Reviewed in office hours, Jan 19, 2024.