Refactor game variables

All the game variables have been moved into their own class named
Tardis.
This helps to clean up the main Game class.

The name "Tardis" is subject to change.
Format the debug
Format the debug (pt2)
Added some documentation

Also moved blankIcon to Utils as this is more logical
Import no longer needed in class
Merge pull request #198 from dreamteam69/master

Refactor game variables, debug formatting