Poll Tool

[renodubois]

I'm not sure how this would work, but basically allow the creation/management of polls.

Probably will need to look at another bot's implementation of this for some inspiration.

[CastroDan]

Working on this now. Borrowing Nadeko's poll formatting for raising polls.

Do we want to support multiple running polls?
Do we want polls to timeout? Configurable timeout? If configurable, we're going to need a separate command.

Slightly related, the bot is going to need a State Manager at some point, whether as an implementation detail for this or for another feature.