SafeNET support

[iiAhmedYT]

Hello, as much as I love seeing the bungeeguard support, its been 2 years since it was last updated.. and this is apparently a maintained nice alternative that will be nice to have support for

https://www.spigotmc.org/resources/safenet-1-8-1-20-protect-your-network-from-ip-forward-bypass-exploit.65075/
https://github.com/dejvokep/safe-net