loan: add location pickup_name on dump

* Adds the location pickup_name field on circulation information.
* Closes #3433.

Co-Authored-by: Bertrand Zuchuat <bertrand.zuchuat@rero.ch>

rero_ils/modules/loans/api.py

@@ -739,8 +739,13 @@ def dumps_for_circulation(self):
             ptrn_data['last_name'], ptrn_data['first_name']))
         if loan.get('pickup_location_pid'):
             location = Location.get_record_by_pid(loan['pickup_location_pid'])
+            location_name = location.get('name')
             data['pickup_location'] = {
-                'name': location.get('name'),
+                'name': location_name,
+                'pickup_name': location.get(
+                    'pickup_name',
+                    f'{location.get_library().get("code")}:'
+                    f' {location.get("name")}'),
                 'library_name': location.get_library().get('name')
             }