Useful to rename the property ReferenceOrderNo?

[IQChristian]

For XRechnung the field BuyerReference (BT-10) must be provided. In the InvoiceDescriptor class this field is called ReferenceOrderNo which could be deceptive. In ZUGFeRD/Factur-X and XRechnung documentation the BT-10 field is named "buyer reference" which is more indicative. The property inside the InvoiceDescriptor could in the future be named like this.