6.0 Experimental Changes

- Only recalculate crit rates when agi/crit procs would require it.
- Changed percentage based procs, and ppm procs to ICD and no-ICD proc
lists.
- Simplified convergence and post convergence proc management.

Note: Performing at roughly ~.1025s still on my laptop. Not sure where
to improve still. Or if the crit_rate change had any impact right now.