Add missing Product class.

Task #072807

__init__.py

@@ -41,6 +41,7 @@ def register():
         module='quality_control', type_='model')
     Pool.register(
         production.Template,
+        production.Product,
         production.Production,
         depends=['production', 'stock_lot_deactivatable'],
         module='quality_control', type_='model')

production.py

@@ -11,6 +11,10 @@ class Template(metaclass=PoolMeta):
         'Production Quality Template')
 
 
+class Product(metaclass=PoolMeta):
+    __name__ = 'product.product'
+
+
 class Production(CreateQualityLotTestsMixin, metaclass=PoolMeta):
     __name__ = 'production'