Add major minor formatter class
Add XP calculator for future use with the bankxp command
Condense alter balance methods to one with a third argument to select db field

Also fixed SQL so it is adding the the new amount to the old
Add getPlayers() method for doing interest
Simplify config
Use new major minor class, and single alterBalance() method
Calculate and add interest
Set defaults for fields because it won't add to null
Formatting