Plotting fix, cache more data in files.
Calculate micro lifetime, too slow to be usable.

Generates one file per handle containing (handle, start, end, [locking]), with
the locking array containing 1 for locked or 0 for unlocked. Takes too long
time to calculate and yields too much data (O(num_ops) * num_handles).

It also skips calculating locking for handles with no stop (ie. no free op),
one the ones that are >95% of the applications lifetime.