[Template] overall_footer_copyright_after

Allow an extension to add a text after the copyright section. This could be used by other extensions for their copyright notice or by a board owner for their personal copyright notice.

Location in prosilver (as of 3.1.2): Line 13
<!-- IF S_COPYRIGHT_HTML -->

{CREDIT_LINE}

<!-- IF TRANSLATION_INFO --><br />

{TRANSLATION_INFO}

<!-- ENDIF -->
<!-- ENDIF -->

would like to have this event:
<!-- EVENT overall_footer_copyright_after -->

Discussion topic: http://area51.phpbb.com/phpBB/viewtopic.php?f=111&t=46551