Create code to work with the IR break-line sensors for intake

[ChrisHirsch]

When this is completed, we need to design a state machine to deal with sensors for intake

[jtdurham]

Overview of proximity switches: https://docs.wpilib.org/en/stable/docs/hardware/sensors/proximity-switches.html#photoelectric-proximity-switches

Digital input class in RobotPy: https://robotpy.readthedocs.io/projects/wpilib/en/latest/wpilib/DigitalInput.html

Non-FRC example: https://learn.adafruit.com/ir-breakbeam-sensors/arduino