add fiel code shipment detailed report

shipment.py

@@ -493,7 +493,7 @@ class ShipmentDetailedReport(Report):
                                               )
         shipments_id = [model + ',' + str(sh['id']) for sh in shipments]
         fields_names = [
-            'product.account_category.name', 'product.name', 'product.cost_price',
+            'product.account_category.name', 'product.name', 'product.code', 'product.cost_price',
             'quantity', 'to_location.name', 'from_location.name', 'shipment.reference',
             'effective_date', 'shipment.number'
         ]
@@ -541,6 +541,7 @@ class ShipmentDetailedReport(Report):
                 'party': party,
                 'oc': oc,
                 'product': product['name'],
+                'code': product['code'],
                 'cost_price': cost_price,
                 'category': category,
                 'category_ad': category_ad,