Add Bench class for benching each (impl, source)
Add Bench class for benching each (impl, source)

The Bench class will handle the timing of the code. Right now nothing
gets run, only debug stuff. Still trying to think through the mechanics
for how the parts relate.

seankelly/implgame,seankelly/implgame,seankelly/implgame,seankelly/implgame,seankelly/implgame