SITL: Added HIL message used by simulator

The simulator uses this messgage to get incoming data from
jMAVSim that it publishes as sensor data that is consumed by the
sensors module.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

src/modules/uORB/objects_common.cpp

@@ -72,6 +72,9 @@ ORB_DEFINE(vehicle_attitude, struct vehicle_attitude_s);
 #include "topics/sensor_combined.h"
 ORB_DEFINE(sensor_combined, struct sensor_combined_s);
 
+#include "topics/hil_sensor.h"
+ORB_DEFINE(hil_sensor, struct hil_sensor_s);
+
 #include "topics/vehicle_gps_position.h"
 ORB_DEFINE(vehicle_gps_position, struct vehicle_gps_position_s);