LP#1915326: fix AngularJS test suite

LP#1915326: fix AngularJS test suite

Several tests of egOrg started failing when Lovefield
was added as a dependency. This patch fixes them by
ensuring that Lovefield is loaded.

To test
-------
[1] Go to Open-ILS/web/js/ui/default/staff and run
    `npm run test`. Note that six tests fail because
    'lf' is undefined.
[2] Apply the patch and repeat step 1. This time, all
    of the tests should pass.

Signed-off-by: Galen Charlton <gmc@equinoxOLI.org>
Signed-off-by: Jason Boyer <JBoyer@equinoxOLI.org>
Signed-off-by: Galen Charlton <gmc@equinoxOLI.org>
Signed-off-by: Jane Sandberg <js7389@princeton.edu>