There are two mixin involved in SMS notifications
* mail.thread: standard SMS sending capabilities;
* mail.thread.phone: advanced use with support of blacklist;
Both require to define fields to use when searching for phone numbers
(generally phone and/or mobile). Those are ``_sms_get_number_fields`` for
mail.thread standard implementation (in SMS module) and ``_phone_get_number
_fields`` for mail.thread.phone advanced implementation (in phone_validation
module).
In this commit we make mail.thread.phone act like a more advanced version
of mail.thread by making _sms_get_number_fields use result of _phone_get_number
_fields, and not the inverse. It allows to remove some overrides notably in
CRM having to define twice fields.
Task ID-2528169
closesodoo/odoo#71111
Related: odoo/enterprise#18428
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>