Use MAVSDK::RawMission in AzMissionController

TODO!!
- send mission indexes from AzMissionController to AzDroneController
- handle finishing of the mission

drone_controller/az_drone_controller.h

@@ -105,10 +105,10 @@ protected:
     shared_ptr<System> mSystem;
     Telemetry *mTelemetry;
     Action *mAction;
-    MissionRaw *mMissionRaw;
     Telemetry::Position mFirstPosition;
     Telemetry::Position mCurrentPosition;
     AzMissionController *mMissionController;
     bool isCopterType;
     int mMissionItemSeqNum;
+    AzMission &mAzMission;
 };