Implement IR sensor and timer

With the center goal able to be in three different positions, we have to
respond to each position. Instead of making three different programs for
each position we use the IR sensor to determine the position of the IR
beacon and use it for relative location to the pole and knock it down.
We added a timer to our program 'KnockDownPoleNoRamp.c' to measure the
amount of time an activity takes versus the actual amount of time we
want it to take.
Merge branch 'master' of https://github.com/Pattonville-Robotics/2866