Support for net_gateway
As mentioned in #128 (closed) and #369 (closed) there is a need for support "net_gateway" in NetworkManager.
There's also another usecase for net_gateway to be present; If you want to exclude something to be routed trough your VPN connection: https://community.openvpn.net/openvpn/wiki/IgnoreRedirectGateway
Please add support for OpenVPN net_gateway