v0.9.2 INLIGHT returns false negatives.

[JoCRaM]

if any panels are retracted, inlight always returns false.

OX-STAT panels are not detected as "EXTENDED" until "PANELS ON" is issued or (an/every) extendable panels is extended.

[erendrake]

SENSOR:LIGHT seems to have taken over for INLIGHT. the Readme needs to be updated.