Refactored to create classes for board, robots etc
Made smaller graphics to fit on laptop screen
Moved files:

Merge branch 'master' of https://github.com/philhoward23/ricochetrobots

Conflicts:
	graphics/flag.png
	graphics/floor.png
	graphics/robot.png
	graphics/wall_c.png
	graphics/wall_h.png
	graphics/wall_v.png