Configure im-table cell URL value to link to URL instead of report page

[heralden]

This existed before, and I think Gos wants it for Bluegenes as well.

When adding this, we should reference how the configuration was done for the old webapp.

https://intermine.readthedocs.io/en/latest/webapp/query-results/#index-0

links Only unique fields (class keys) are links in results pages. Add to Class keys to make the fields links on results pages. Instead of linking to an intermine report page, you can set the links to redirect to external page. See Link redirects