WINTERMUTE: Introduce dirtyRectContainer
WINTERMUTE: Hook up BaseRenderOSystem with DirtyRectContainer
WINTERMUTE: Add outlining in BaseRenderOSystem for visually debugging rects
WINTERMUTE: Add support for bailing out in multirect
WINTERMUTE: Add consistency check to mutlirect
WINTERMUTE: Trigger drects bailout just once
WINTERMUTE: Introduce arbitrary limits for drect bailout