This commit enables tracking on vat, parent_id for the contact, because the
impact of changes of these fields are very important.
We also manually track portal status change. To avoid a costly computed
field, this is done through manually logging portal access change as a note
on the user partner's chatter.
VAT field naming is also updated to match view naming used in inherited
views.
TaskID-2586195
closesodoo/odoo#74692
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>