feat: Se crea reporte de extracto de ventas

sale.py

@@ -329,6 +329,7 @@ class Line(metaclass=PoolMeta):
 
     pizza = fields.Integer("Pizza")
     impreso = fields.Boolean("Impreso")
+    bought_pizza = fields.Boolean("Sold pizza")
 
     @fields.depends('product', 'unit', 'sale',
                     '_parent_sale.party', '_parent_sale.invoice_party',
@@ -339,6 +340,9 @@ class Line(metaclass=PoolMeta):
         super(Line, self).on_change_product()
         if self.product and self.product.pizza:
             self.pizza = self.sale.pizza_number
+            self.bought_pizza = True
+        else:
+            self.bought_pizza = False
 
     def get_production(self):
         "Return production for the sale line"