Added new feature for Mail Message. It is possible now copy the attachments from mail message to DMS module (if DMS is present and if User are allowed to add documents) throw a fast input.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22082 20353a03-c40f-0410-a6d1-a30d3c3de9de