Support for NetworkManager

Is your feature request related to a problem? Please describe. On Linux, ZeroTier does not have a GUI to handle it. Since NetworkManager is a standard manager for all modern Linux distributions, NetworkManager is very desirable.

Describe the solution you'd like A NetworkManager plugin to be able to Join, Remove, Track (Show informations, etc), handle L2 and L3 interfaces - much like OpenVPN plugin, but for Zerotier.

Describe alternatives you've considered The only way to handle ZT within Linux is using CLI.

Additional context This feature request was made in Reddit