AP_Common: Added RallyLocation struct.

libraries/AP_Common/AP_Common.h

@@ -97,6 +97,17 @@ struct Location {
     int32_t lng;                                        ///< param 4 - Longitude * 10**7
 };
 
+struct RallyLocation {
+    int32_t lat;        //Latitude * 10^7
+    int32_t lng;        //Longitude * 10^7
+    int16_t alt;        //transit altitude (and loiter altitude) in meters;
+    int16_t break_alt;  //when autolanding, break out of loiter at this alt (meters) 
+    uint16_t land_dir;   //when the time comes to auto-land, try to land in this direction (centidegrees)
+    uint8_t flags;      //bit 0 = seek favorable winds when choosing a landing poi
+                        //bit 1 = do auto land after arriving
+                        //all other bits are for future use.
+};
+
 //@}
 
 ////////////////////////////////////////////////////////////////////////////////