[IMP] base: Add VAT field as optional field on partner tree view.
[IMP] base: Add VAT field as optional field on partner tree view.

closes odoo/odoo#37670

Signed-off-by: Laurent Smet <1328e3a5817ff065354bd0f7f4073cbb6dcc7eca@users.noreply.github.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo