add support for virtual interfaces in budgie networking applet

[g6094199]

i try to setup a wireguard connection in networkmanager.

wiregurad is a "virtual" interface, but these dont show up in budgies networking applet.

budgie network settings:

in the nm applet you can add "virtual" interfaces like wireguard, vlan, etc.

even if you set up the wireguard interface in the nm applet it wont show in the budgie networking applet. so plz add support for all the missing settings from nm in the budgie networking applet.