Feature Request: ability to configure admin/curator-only externaltools

Overview of the Feature Request

One reason we haven't enabled the Data Curation Tool in our production installation was concern over allowing data owners to edit variable-level metadata. Our Research Data Preservation Archivist asked if there were some way to offer the tool, but only to site administrators.

What kind of user is the feature intended for?

Superuser, Curator(?)

What inspired the request?

Concern over allowing any data owner to edit variable level metadata with the data curation tool.

What existing behavior do you want changed?

We would like to offer some external tools in an admin-only fashion.

Any brand new behavior do you want to add to Dataverse?

We would like to offer some external tools in an admin-only fashion.

Any open or closed issues related to this feature request?

Nothing came back in my search, but I'm not great at that.

Are you thinking about creating a pull request for this feature?

We would like to, but this seems like it would require input on permissions models and the availability of externaltools.

Start by clarifying the permissions model and how external tools are made available. Determine which roles should access admin/curator-only external tools and how data-owner access must remain restricted. Done means the approved external tools are available to administrators or curators without granting that access to ordinary data owners.