circulation: add more informations on loan dump

Adds more informations when loans has dump for circulation UI.
Informations added are the item destination library code and item
destination location code.

Co-Authored-by: Renaud Michotte <renaud.michotte@gmail.com>

rero_ils/modules/loans/api.py

@@ -358,9 +358,12 @@ def dumps_for_circulation(self):
             if LoanState.ITEM_IN_TRANSIT_FOR_PICKUP:
                 destination_loc_pid = self.get('pickup_location_pid')
             destination_loc = Location.get_record_by_pid(destination_loc_pid)
+            destination_lib = destination_loc.get_library()
             data['item_destination'] = {
                 'location_name': destination_loc.get('name'),
-                'library_name': destination_loc.get_library().get('name')
+                'location_code': destination_loc.get('code'),
+                'library_name': destination_lib.get('name'),
+                'library_code': destination_lib.get('code')
             }
 
         return data