### Summary
Adds the command [TrackLeaks to enable tracking item/mobiles that have been deleted but still have dangling references. Requires adding the _TRACK_LEAKS_ define constant during build.
Adds. Gen2Callback for STArrayPool so it can purge the internal array stacks properly. This only happens if significant timed has passed, 2 Gen 2's have been run, and memory pressure exceeds a threshold.