This patch does some cleaning up of the code that provides visualisation
of CCR o2 sensor and o2 setpoint data. It reduces the number of
conditional evalauations that are required and it improves the readability
of these parts of the code.
Signed-off-by: willem ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>