Forward, Backward, Rotate, Stop, and attachServos subroutine


using this code and the Servo.h library, it will make it a lot easier to teach -- still have many ideas for variations to try out.

Currently speed is between 100 (full steam ahead) -100 (reverse direction full steam)

We need to place a toggle to adjust the wheels

Perhaps another function which modifies the ratio of power sent from left or right (keep in mind that this might not work for forwards but not for backwards, but we definitely can implement a software fix for them)

Stop completely detaches the motors to stop them (we could add individual motor control later (was thinking about having students use the Cntl+f command to rename their wheels).

Still want to implement the code for controlling the head and neck of the pan-tilt servo motor (will probably need to stop by lowes to check if they have any suitable screwdrivers for these particular screws).