CDDebugObject Queue instead of Clear Rates

The CDDebugObject is an object that quickly adds/removes geometry to represent collision data (contacting faces, edges, etc). This is for debug purposes.

Unfortunately when you have a simulation running at 1000 updates a second its hard to see whats going on. One might slow it down, advance by key, or one of the solutions currently provided is a "clear rate". Which clears the collision data visual representations every N frames. So you can see the last say, 50 frames.

A more intuitive implementation would be a queue. Such that you can store the last 50 collision data representations. Unfortunately this is a bit tricky to implement efficiently.