Feature request: Per-server tokens

[Cyanoure]

Add the ability to add multiple tokens to the proxy, specify different token to a specific server. For example, I have the proxy, and some servers underneath that proxy. My friend join the network with his server, and I want to give him a different token, so he can't join the other servers by making a bungeecord and use that token, but he has full access to his server.

[Cyanoure]

Oh sorry, I found an another thread about this. :'D https://github.com/lucko/BungeeGuard/issues/43