add a new view M2_viewM2Bis. It list all M2Bis Form relate to M2 Form.
And update action on the portal_type M2 in order to use this view

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22949 20353a03-c40f-0410-a6d1-a30d3c3de9de