Support a list of servers that are cycled on reconnect

[glguy]

This would lead to bundling the hostname, port, tls settings so that each entry in the list could have a different setting.

servers:
  * name: "example"

    remotes:
      * hostname: "this.chat.net"
        port: 6667

      * hostname: "that.chat.net"
        port: 7000
        tls: yes

I'm not sold on what remotes should actually be, however. Perhaps servers becomes networks and then remotes could be servers