Updated Renderer system, now much easier to expand and maintain.
Vastly optimised InputManager and Pointer is now aware of which camera it is over.
WorldView now takes camera placement into account, so Buttons now work across multiple camera set-ups.
Tidied up the Loader so it now starts automatically, added required Signals and removed the old-style callbacks.
Added ability for the TimeManager to monitor the pause duration. This is then applied to tweens and other game services, meaning the tweens now restart properly after a pause resumes.