#LinxCommerce - #GetOrder - Add property at `Order` that shows the Sum of the Qty of `Items[]`

[andersoal]

Add property at Order similar to:

"ItemsCount": 3,
"ItemsQty": 7.00,

To show the Sum of Qty of all Items[] that are not IsFreeOffer: true and CatalogItemType: 7 (Bundle)