SCOAP3 license tagging

SCOAP3 funded papers require Funded by SCOAP3 inserted in a new paragraph following the copyright line

<permissions>   
<copyright-statement>…</copyright-statement>
<copyright-year>...</copyright-year>
<license xmlns:xlink="http://www.w3.org/1999/xlink" license-type="cc-by"
xlink:href="http://creativecommons.org/licenses/by/3.0"><license-p>This is an Open Access article distributed under the terms of the Creative
Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is properly cited.</license-p>   
<license-p>Funded by SCOAP<sup>3</sup>.</license-p>
</license>
</permissions>