Request: Netmaker Plugin

Netmaker is a full-mesh wireguard overlay network that is an alternative to Zerotier or Tailscale. Netmaker uses kernel wireguard, so it is ~5x faster than either competitor. It is open-source without any node limits like zerotier has.

An author has posted in r/opnsensefirewall declaring compatibility with FreeBSD, so there might be interest in collaboration.

The plugin in OPNSense should be capable of operating as an:

• "Netmaker Server" so there is no dependency on a third-party (or subjection to future node-limits)
• "Ingress Gateway" allowing any generic wireguard client access to the overlay network,
• "Egress Gateway" allowing overlay network nodes access to other LANs

Posting rules:

• [✅ ] I have read the contributing guide lines at https://github.com/opnsense/plugins/blob/master/CONTRIBUTING.md
• [✅ ] I have searched the existing issues, open and closed, and I'm convinced that mine is new.
• [ N/A] When the request is meant for an existing plugin, I've added its name to the title.