estimator_baro_bias (UORB message)

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uint64 timestamp                # time since system start (microseconds)
uint64 timestamp_sample         # the timestamp of the raw data (microseconds)

uint32 baro_device_id		# unique device ID for the sensor that does not change between power cycles
float32 bias			# estimated barometric altitude bias (m)
float32 bias_var		# estimated barometric altitude bias variance (m^2)

float32 innov			# innovation of the last measurement fusion (m)
float32 innov_var		# innovation variance of the last measurement fusion (m^2)
float32 innov_test_ratio	# normalized innovation squared test ratio