Development Fork

We will use this branch to do the development for the game. Merging to
the master only when we have a stable game.
Rendering and Keyboard input

Added the Screen and Control classes.
Object Creation Update.

We can now create objects and have them update at a set speed! This
means we can start developing. Added Collidable; MainCharacter and
RunnableObject. WASD or Arrow keys to move!