LP#1956510: mark acqfy and acqfc fields as required in the IDL

LP#1956510: mark acqfy and acqfc fields as required in the IDL

This ensures that the non-NULL fields in for the fiscal year
and fiscal calendar must have values supplied during creation
and editing. (However, at the moment, Evergreen's Angular datepicker
does not implement checks for the date value being mandatory)

Signed-off-by: Galen Charlton <gmc@equinoxOLI.org>
Signed-off-by: Jane Sandberg <js7389@princeton.edu>
Signed-off-by: Terran McCanna <tmccanna@georgialibraries.org>
Signed-off-by: Garry Collum <gcollum@gmail.com>
Signed-off-by: Andrea Buntz Neiman <abneiman@equinoxinitiative.org>
Signed-off-by: Michele Morgan <mmorgan@noblenet.org>
Signed-off-by: Steven Mayo <smayo@georgialibraries.org>
Signed-off-by: Christine Morgan <cmorgan@noblenet.org>
Signed-off-by: Stephanie Leary <stephanie.leary@equinoxOLI.org>