Revert "[FIX] point_of_sale: remove references to pos_loyalty"

This reverts commit 07dac79ddb.

There is apparently a pending PR which will fix this better.

addons/point_of_sale/res_config.py

@@ -10,6 +10,11 @@ class pos_configuration(osv.TransientModel):
             (1, "Restaurant: activate table management")
             ], "Restaurant",
             help='This module adds several restaurant features to the Point of Sale: \n\n- Bill Printing: Allows you to print a receipt before the order is paid \n\n- Bill Splitting: Allows you to split an order into different orders \n\n- Kitchen Order Printing: allows you to print orders updates to kitchen or bar printers'),
+        'module_pos_loyalty': fields.selection([
+            (0, "No loyalty programs"),
+            (1, "Use loyalty programs")
+            ], "Loyalty",
+            help='Allows you to define a loyalty program in the point of sale, where the customers earn loyalty points and get rewards'),
         'module_pos_discount': fields.selection([
             (0, "Allow discounts on order lines only"),
             (1, "Allow global discounts")

addons/point_of_sale/res_config_view.xml

@@ -12,6 +12,7 @@
                     </header>
                     <group string="Point of Sale">
                         <field name="module_pos_restaurant" widget="radio"/>
+                        <field name="module_pos_loyalty" widget="radio"/>
                         <field name="module_pos_discount" widget="radio"/>
                         <field name="module_pos_mercury" widget="radio"/>
                         <field name="module_pos_reprint" widget="radio"/>