Added to core scripts which simplify the creation of new content from the front page of a site or from any part of a site. It is in core rather than base since it is useful for any ERP5 business template, even without Person & Organisation.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12971 20353a03-c40f-0410-a6d1-a30d3c3de9de