Including
* allow to keep archives when performing a mass sms. This performs a log
in mass in addition to sending SMS in batch, which could slow your
sending;
* move writing on failed traces in its own method to ease inheritance in
marketing automation sms;
Task ID 2053632
closes odoo/odoo#36503
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>