Bug 32976: Add permission check on Add/Edit controls for patron images

Bug 32976: Add permission check on Add/Edit controls for patron images

This adds a check on the batch_upload_patron_images permission
to the Add/Edit control for patron images in the patron account
in the staff interface.

To test:
* Enable patronimages system preference
* With your 'superlibrarian' account:
* Add and edit/remove a patron image to an account
* Create a staff user with batch_upload_patron_images permission
* Log in with this user and verify everything works the same
  as before
* Remove the batch_upload_patron_images permission
* Verify the Add/Edit controls are on longer visible to this
  patron

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Christopher Brannon <cbrannon@cdalibrary.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>