feat(mavlink): add ranging beacon parser and uORB message

msg/CMakeLists.txt

@@ -177,6 +177,7 @@ set(msg_files
 	QshellReq.msg
 	QshellRetval.msg
 	RadioStatus.msg
+	RangingBeacon.msg
 	RateCtrlStatus.msg
 	RcChannels.msg
 	RcParameterMap.msg

msg/RangingBeacon.msg

@@ -0,0 +1,24 @@
+# Ranging beacon measurement data (e.g. LoRa, UWB)
+
+uint64 timestamp                # [us] time since system start
+uint64 timestamp_sample         # [us] the timestamp of the raw data
+uint8 beacon_id
+float32 range                   # [m] Range measurement
+
+float64 lat                     # [deg] Latitude
+float64 lon                     # [deg] Longitude
+float32 alt                     # [m] Beacon altitude (frame defined in alt_type)
+uint8 alt_type                  # [@enum ALT_TYPE] Altitude frame for alt field
+uint8 ALT_TYPE_WGS84 = 0        # Altitude above WGS84 ellipsoid
+uint8 ALT_TYPE_MSL   = 1        # Altitude above Mean Sea Level (AMSL)
+
+float32 hacc                    # [m] Groundbeacon horizontal accuracy
+float32 vacc                    # [m] Groundbeacon vertical accuracy
+
+uint8 sequence_nr
+uint8 status
+uint16 carrier_freq             # [MHz] Carrier frequency
+float32 range_accuracy          # [m] Range accuracy estimate
+
+
+# TOPICS ranging_beacon