automatitizise sensor test

[fabiansch]

LogicLayer::SensorTestController should work for all sensor signals:

• light barrier signal DONE
• height match signal DONE
• height measurement (send item to next cb and check height value)
• metal match signal DONE
• START_SENSOR_TEST signal DONE
• FINISH_SENSOR_TEST signal DONE

[fabiansch]

working on branch feature_serial_interface. LogicLayer::SensorTestController already works for all light barrier signals.

[FlowwX]

merged branch