Added booking id to payments model

models/reporting/core/schema.yml

@@ -1841,6 +1841,11 @@ models:
           The exchange rate used to convert the payment amount from local currency
           to GBP.
 
+      - name: id_booking
+        data_type: bigint
+        description: The unique, Superhog generated id for this booking.
+          Can be null for verification request not related to a booking.
+
       - name: id_user_host
         data_type: character varying
         description: |