output schematron version and date of creation to peppol NRS
- add pattern id
- add output as described in title
<!-- created from XRechnung-UBL-validation.sch in version x.x.x on date -->
<pattern id="german-rules">
<!-- created from XRechnung-UBL-validation.sch in version x.x.x on date -->
<pattern id="german-rules">