Select display image for accession

[bm743]

Description

This adds the ability to select an image from the stock images table on the accession page as the display image for that accession. Adds a set button next to each associated image in the image table.

Fixes #5270

Checklist

• Refactoring only
• Documentation only
• Fixture update only
• Bug fix
  • The relevant issue has been closed.
  • Further work is required.
• New feature
  • Relevant tests have been created and run.
  • Data was added to the fixture
    • Data was added via a patch in /t/data/fixture/patches/.
  • User-Facing Change
    • The user manual in /docs has been updated.
  • Any new Perl has been documented using perldoc.
  • Any new JavaScript has been documented using JSDoc.
  • Any new legacy JavaScript has been moved from /js to /js/source/legacy.

[titima15]

@bm743 Should restrict the ability to select an image only to users with curator role. @lukasmueller what do you think?

[titima15]

Lukas, Heather and I think that this function should be restricted to only users with curator role. Other users should see the original Images table (no Set Display function), only curators can see the Set function.

[lukasmueller]

:-)