Energyusage

* added Emissions Comparison section to command-line report
* minor bug fixes

v.0.0.6
* fixed multiprocessing bug that would cause deadlock

v.0.0.7
* added option of getting emissions value from `evaluate` via energyOutput parameter

* updated conversion formulas
* added powerLoss parameter

* minor bug fixes

* removed emissions from return of `evaluate`, now just returns value of user function
* added `Average total wattage` to report to distinguish between baseline+process and just process
* added to README to make it comprehensive
* added new carbon equivalent: minutes of TV watched