[WAZO-3444] add missing server URL in common files generation

Reviewed-by: Pascal Cadotte Michaud

cisco-sip: fix server url in model templates

Reviewed-by: wazo-community-zuul[bot]

cisco-sip: fix missing server_url in common.py

Reviewed-by: wazo-community-zuul[bot]

WAZO-1760: provd behind reverse proxy

Reviewed-by: Pascal Cadotte Michaud <None>

fix for alcatel NOE

Reviewed-by: Alexandre Fournier <None>
Reviewed-by: Franck M <contact@voipservices.fr>

Snom, firmware 10.1.152.12

Hello,
Let's update Snom to 10.1.152.12 firmware.
This PR also :

properly defines the timezone option, removing the need for the internal options such as dst, utc_offset... ;
defines webserver_(user|admin)_(name|password) options, needed for the new D862 / D865 ;
defines (and refreshes) some templates which were missing for some devices.

Further SNom updates will follow in a upcoming PR.
Thx 👍

Reviewed-by: Alexandre Fournier <None>