Add a new module that makes three new fields available on the invoices.
These fields are required when using facturx to send invoices to
public services through Chorus PRO.

The original template is updated to make it easier when integrating
the ubl refactoring coming soon, and avoid template issues that would
happen with an inherit if the inheriting module isn't updated after the
refactoring deployment.

opw-2714544

closes odoo/odoo#92954

Signed-off-by: Laurent Smet <las@odoo.com>