Small bug fixing with the state changer and the way the img bank is passed into the game object.

All images are now the correct size so that there is no resizing in code. The image bank now asserts that the image was loaded. A basic front end was added. There is now a state enum to switch between various game states.

This has been added along qwith code to stop the player dieing if he runs into a zombies that has been killed. Currently there is no way of actually killing the zombie, that is the next job.

This is so that I don't have to pass it around all of the time. also put the endpoint file in the right place.

Lot of files have change merely because of an error on my part. refactored code to use a game class to house all the game code (ready for front end stuff to be added).

I am lazy and should commit regulaly but I have :/ so this is massive.

Adding the very basic file that were created by OF. No code of my own yet.