WINTERMUTE: Avoid including BaseGame in BaseFrame.
WINTERMUTE: Avoid including BaseGame in BaseViewport.
WINTERMUTE: Split the timers from BaseGame into a separate class.
WINTERMUTE: Avoid including BaseGame in BaseFader.
WINTERMUTE: Avoid including BaseGame in BaseSoundManager.
WINTERMUTE: Avoid including BaseGame in PartEmitter.
WINTERMUTE: Use BaseEngine for Logging, not _gameRef in base-classes.
WINTERMUTE: Get Renderer from BaseEngine, not BaseGame in BaseClasses.