updated comments
initial commit on adding acceleration

altered motor class and derived Rover5motor class to hold extra data
for tracking acceleration when the scan is all clear.
acceleration when the coast is clear
acceleration and backward slower
added proportional easing to drive()

I'd like the bot to have a strong ease response when it gets
close to a wall.  So I added some code in the drive function
to add an easing adjustment to the base easing power
inversely proportional to the distance from the wall.
initial effort to get proportional easing

added work to .drive to make this happen
Proportional Easing Implemented

Also rewrote the comments section and added a file tracking the
size of the code base for the project.