Is your feature request related to a problem? Please describe.
DHL Freight is the DHL branch for large goods / palettized shipments. They are widely used in Germany and EU.
https://www.dhl.com/global-en/home/our-divisions/freight.html

Describe the solution you'd like
DHL Freight uses a XML/SOAP webservice. It would be great to be supported out of karrio.

The following operations are supported by the weborder service (full schema attached):

• dhl:DHL_ShipmentRequest: Create a shipment (not finalized)
• dhl:DHL_ShipmentDeletionRequest: Cancel a shipment
• dhl:DHL_ShipmentValidationRequest: Check if shipment is prepared (but not finalized)
• dhl:DHL_ManifestCreationRequest: Finalize shipment
• dhl:DHL_DocumentsRequest: Create shipment documents (Loadinglist and Barcode)

There are no rate requests, so rates should be determined via karrio's new pricing table scheme.

Describe alternatives you've considered
Currently, DHL Freight shipments must be created manually via their FCM AX4 web portal. This is error prone and time consuming.

Additional Context
Full Schema: final_wo_version_1_3_13_20230103_1053.wsdl.txt