LP#1727487 Webstaff In-House-Use uses display fields

LP#1727487 Webstaff In-House-Use uses display fields

Replace reporter.simple_record data with metabib display fields.

Use flat_display_entries instead of wide_display_entry partially as an
example, but also because it requires slightly less data munging on the
DB side.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>
Conflicts:
	Open-ILS/web/js/ui/default/staff/circ/in_house_use/app.js

Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>