added extracted copyright statement to output

[Aazhar]

#557

[lfoppiano]

Currently if you select "includeRawCopyright" you should get the information. E.g.

<publicationStmt>
                <publisher/>
                <availability resp="authors" status="restricted">
                    <licence>CC-BY</licence>
                    <p type="raw">© 2024 Liu, Good. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</p>
                </availability>
                ```