[IMP] point_of_sale: add pos_order pivot view
[IMP] point_of_sale: add pos_order pivot view

Add a pivot view mode to the pos_order model.

closes odoo/odoo#37613

Signed-off-by: Martin Trigaux (mat) <cc7c5be316e48d137cbb549833b85d91034d799d@odoo.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo