This commit consist of adaptation of the pos_self_order module to send orders to preparation display. The main changes consist of sending the table stand number that the client put in to the backend to be shown in the preparation display. It also consist of moving the tracking number from the pos_self_order module to the point_of_sale module so that every number has a tracking number. closes odoo/odoo#134980 Task-id: 3495477 Related: odoo/enterprise#47203 Signed-off-by: David Monnom (moda) <moda@odoo.com>