Bug 34092: Preparation: New buildPatronSearchQuery function

Bug 34092: Preparation: New buildPatronSearchQuery function

Move patron search query logic out of patron_autocomplete into new function

Signed-off-by: Paul Derscheid <paul.derscheid@lmscloud.de>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit ea599d774de4f43adb36a6a8382f0026246b16c1)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit e650fe865f53ff5f2c1d8c479a92bad98a1232f2)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>