Inventory API: expose order_id in movement history list

The use case is to generate an unique id for each sides of the movement
or each "submovements" when using asMovementList

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Resource_zGetMovementHistoryList.xml

@@ -490,6 +490,7 @@ FROM (\n
 SELECT DISTINCT\n
   catalog.path as path,\n
   catalog.uid as uid,\n
+  stock.order_id as order_id,\n
   catalog.relative_url as relative_url,\n
   stock.date AS date_utc,\n
   stock.mirror_date AS mirror_date_utc,\n

product/ERP5/tests/testInventoryAPI.py

@@ -1566,6 +1566,9 @@ class TestMovementHistoryList(InventoryAPITestCase):
     self.assertTrue(hasattr(brain, 'resource_relative_url'))
     self.assertEqual(brain.resource_relative_url, self.resource.getRelativeUrl())
 
+    # order_id is exposed on brains, useful to generate unique id, using "{uid}-{order_id}"
+    self.assertTrue(hasattr(brain, 'order_id'))
+
 
   def testBrainGetItem(self):
     """Test __getitem__ interface on brains."""