Prepend Bayes storage module

This allows us to override instance methods of the class since the
module will have it's methods looked at when doing a method look up
before the actual classes methods. Thus we can call super from the
method and have that call the class method
Create the database table on init of Bayes
Properly updated the database on persist
Add method to reload classifications from db
Add method to clear the database and persist
Move current CLI code to karat_sleuth/cli.rb
Add skeleton for final presentation

This is due Thursday. What have we done!?!
Empty files for how I _think_ we should structure