Tibia Better Bazaar

Enhances the Tibia Char Bazaar by providing several features:

- Shows the true estimated value for all auction characters.
- Provides the character world information right on the bazaar page.
- Calculates world sale statistics based on past auctions.
- Allows you to input any character information and get a price prediction, so you can profit off your characters by providing an accurate minimum bid.

Here's how the new world statistics are calculated:
World Sales Rank: The world sales ranking is just the sheer number of completed auctions for all worlds, and where the current world resides on that list.
World Success Rate: The success rate that auctions have for any given world. Success is defined as an auction that gets at least 1 bid and so it is successfully sold.