Wip george bt export

The last two commits are moving TemplateTool_viewMigrateBusinessTemplateListToNewFormatDialog form from erp5_core to erp5_forge.

Check also https://lab.nexedi.com/nexedi/erp5/blob/ef488b4986befb42e1f8d345c90ca9dcb74c707c/product/ERP5/bootstrap/erp5_core/bt/comment