Document DriverAssistToTargetWithVision.java class

The best documentation for this will include a drawing that shows a typical use case, i.e. robot at a general angle on the field with one possible target such as a cargo target at 180 degrees orientation or maybe even a rocket target at the side. The drawing should include:

-all relevant coordinate frames (e.g. field, robot, camera)
-robot (just a simple drawing, but big enough to show the robot coordinate frame and camera coordinate frame)
-target (just a simple drawing)
-all relevant parameters (e.g. final distance of robot to target---since we don't want it 0 inches from the target)
-all important variables used in the computations in the class