Game difficulty and hit box on Big Boo
Merge branch 'master' of https://github.com/br8k/SuperGhostPunterIVArcadeEdition.git
Changes :

New HighScore Screen, to Bennett- updates properly just need to make a
few changes to images used. 

You can now buy bones for 50 of your points, doesn't subtract from your
score. You can equip bones and then unequip them. If they are equip then
when you press kick button you instead throw the bones. UltraGhost is
complete unless we want to change the animation of his attack, I think
this would be cool. 

Game has three difficulties now, I think we should add a multiplier to
the score based on which difficulty you are playing. This is like 4 new
lines of code and would be very easy to do. 

Things to do:

Minimap bug and bug with enemies only spawing on your left when you go
all the way to the right on the map. 

Bennett- lots of images need to be redone to fit style of game
sprite.Splash Screen.

I'm going to work on getting bones from jumping up into graves.