Wrapper around probes

@mcao01 @jbeyler01 @rrose01 @kmckinley01 @u3789498

This is the wrapper I started writing after our meeting with Steve on Friday night. Still in progress but feel free to comment on things that need to be added/removed/changed.

Sample output (this is going to change): python3 perf_launcher.py ['PERF_COUNT_HW_CPU_CYCLES', 'PERF_COUNT_HW_INSTRUCTIONS'] ['14603565177', '17840200638']