SimpleSensors: use environment mag field
SimpleSensors: use environment mag field

molecule/jMAVSim,PX4/jMAVSim,boonjiashen/jMAVSim,iidioter/jMAVSim,PX4/jMAVSim,joeyfezster/jMAVSim,DrTon/jMAVSim,PX4/jMAVSim,DrTon/jMAVSim