Cleaning up the CFG tool; deleted some old not really tools that just test various things. Changed the IBL lookup to expose more registers and not use partial registers as much. Eventually when I clean up the policy stuff and get rid of mangled addresses, it will simplify even further.
Added code for converting CFG dumps into profile-guided optimization data, and added some code that pre-instruments jccs, switching them if necessary, to match the recorded profile.
Fixed some minor issues related to not running the CFG file with indirect branch recording.