change signal names to match book.

Created by: rosethompson

• Fixed a bunch of odd bugs with the test bench preventing correct measurement of performance counters.
• Removed debugging code.
• Updated parsing script.
• Partial automation of branch predictor embenching.
• Mostly working bpred launch script.
• Working batch mode branch prediction simulations.
• Updated fpga ila script.
• Renamed ebuarbfsm to ebufsmarb to match figures.
• Renamed InstrFirstHalf to InstrFirstHalfF.
• Renamed PCFSpill to PCSpillF.
• Renamed signals to be consistent with textbook.