* Overlay per-type cost logging.
Overlays will now log how long each type took to process.
Changed up how overlays was done to account for the fact its a queue and not a processor. (it was using almost none of the processing subsystem framework)
Made the overlay loop faster by making it not cut the list until the end.
Added a simple generic benchmark stat tracking system.
I don't know how much overhead this adds to overlays. i may put it behind testing or something, but i do want to test this on the serbers to get some stats.
* Removes flush() as it was creating race conditions
* Use ref
* text2file
* Atoms added as an overlay will have their pending overlays compiled before being converted to an appearance
