Add getter for desSpeed in PLC

modules/catkin_ws/src/car/include/mainNode/PlatoonController.h

@@ -28,6 +28,8 @@ public:
                       EgoMotion& egoMotion);
       
     void run();
+
+    float getDesSpeed() { return desSpeed.get(); }
     
     Callback cruiseControllerNotify;
      
@@ -52,7 +54,6 @@ private:
     void updateDesSpeed();
     pc2car::TimedValue<float> desSpeed{0.0f};
     
-
     void setupC2C();
     
     // METHODS