The SFU is a server used to relay streaming between the participants of
a call to provide better scalability and performance than the current
peer-to-peer connections.
The required fields have been added in https://github.com/odoo/odoo/pull/138581
* `/mail/static/lib/discuss_sfu` contains the client code that is used
by the odoo client to interact with the SFU.
From: https://github.com/odoo/sfu/releases/tag/v1.0.0
* The Json Web Token code has been extracted from `web_push` while
adding support for the HS256 algorithm, to be used as the authentication
method between the SFU and Odoo.
* The python code has been updated so that the odoo server requests a
channel from the SFU when going above a participant threshold, and swap
the participants to a SFU connection afterward.
* `rtc_service.js` has been updated to support both peer-to-peer and
SFU modes.
* The `call_context_menu` has been updated to display information
relative to the SFU connection when in SFU mode.
task-2765922
closesodoo/odoo#132153
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>