Snom plugins update

Reviewed-by: Yannick MOLINET
             https://github.com/ymolinet

Use temp dir instead of hardcode dir

Introduce Firmware 10.1.51.12 et 10.1.54.13
Add support of UXM (firmware update)
Add my tools/generate_pkgs-db.sh (create pkgs.db)
Add support of D120, D712, D385

[WAZO-1787] Yealink: fix proxy_port missing on line in v83

Reviewed-by: https://github.com/apps/wazo-zuul

Add new mac prefix for Gigaget (58:9e:c6)

Reviewed-by: https://github.com/apps/wazo-zuul

WAZO-1317: add DND action URLs to Yealink v83 and v84

Reviewed-by: https://github.com/apps/wazo-zuul

reason: it is not well supported by the phone and causes On/Off loops.

Revert "set dscp 46 for cisco spa phone"

Reviewed-by: https://github.com/apps/wazo-zuul

This reverts commit bfbc63e6.

This config is not working, and some time prevent phone to get his config properly

WAZO-1713: fix aastra default values

Reviewed-by: https://github.com/apps/wazo-zuul

reason: using port 0 by default is not a valid value and will make the
phone unusable.

WAZO-1706: fix Aastra/Mitel firmware links

Reviewed-by: Francois Blackburn
             https://github.com/fblackburn1

[WAZO-1324] Yealink W80B - reworked

reason: the way SIP lines are defined changed. It is now necessary to
generate a line template and set the template ID on the line. I tried to
make it so you can have multiple SIP proxies, with different template
IDs generated for each one.