Add new XSL stylesheet for ERP5 OOo Templates which able to transform any CDATA section, tagged with 'TALES' in style name, into attribute tal:content

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18610 20353a03-c40f-0410-a6d1-a30d3c3de9de