Added new polar function, currently it does not distinguish between up wind and downwind and doesn't find it in the correct quadrant #story[1186]

racevisionGame/src/main/java/mock/model/VMG.java

@@ -45,4 +45,8 @@ public class VMG {
         return bearing;
     }
 
+    public String toString(){
+        return String.format("VMG Object: Speed %f, Bearing %f.", speed, bearing.degrees());
+    }
+
 }