Reorded "dumb brute" algo to "Ground Zero" algo, with add-on features

- Renamed "dumb brute" algo to "ground zero" algo
- Created flag values to toggle our add-ons for algos
- Moved "dead cells" to add-on feature of Ground zero algo
- Renamed this.moves to this.pencils
- Added new value - this.moves to count # of moves vs # of values placed
- Cleaned up code for algo recursion
- Cleaned up and standardized stopwatch timers
- Added stopwatch timers to ->refreshMovesStatus
- Added new groundzeroAlo (copt of brute)
- Added toggle for deadcells add-on