Web Store Consumer Web Service that allows Invoice Uploading.

The following operations are supported. For a formal definition, please review the Service Description.

• UploadInvoice
  Allows uploading of an invoice to the server using an invoice entity
• UploadInvoiceLight
  Upload an invoice with smaller invoice object.
• UploadInvoiceLight2
  Upload an invoice with smaller invoice object, XML variables, and image as URL to be downloaded.