Update dimensions on package for shipment_out
Following discuss https://discuss.tryton.org/t/stock-packages-and-pallet/3449
This feature gets dimensions from package_type and allows to update them on package. Useful when package is a pallet, you don't know height until packaging is done.
stock_package_shipping_dpd and stock_package_shipping_ups are now using dimensions from package instead of package_type.