Add a server selector before voting

[HamtaBot]

Description of your suggestion

As a lot of CMS actualy do it, it would be very cool to add a way (can be toggled off or on for people who doesn't want it) to select a server before voting, like that we could avoid the hard way of giving the reward on every servers or also do not need to custom code a plugin to send reward from the proxy (this is a bit buggy due to for exemple velocity not allowing bukkit commands on the proxy)

Advantages

For people using LoadBalancers or muliple lobby, it could be cool to have an option to toggle that thing off to not let servers owners expose all the servers to the user or to not let user struggle with which server they wan't to get the reward (when there is a lot)

[magrigry]

For those who need this feature, have a look at https://github.com/magrigry/Plugin-Vote