VMGCommand now toggles autoVMG on and off. Linked up observer and observable so the current boat can now be controlled.

#Story[1097]

racevisionGame/src/main/java/mock/model/commandFactory/TackGybeCommand.java

@@ -2,6 +2,7 @@ package mock.model.commandFactory;
 
 import mock.model.MockBoat;
 import mock.model.MockRace;
+import shared.model.Bearing;
 
 /**
  * Created by David on 2/08/2017.
@@ -28,5 +29,6 @@ public class TackGybeCommand implements Command {
         if(race.improvesVelocity(boatVMG, newVMG, boat.calculateBearingToNextMarker())){
             boat.setVMG(newVMG);
         }*/
+        this.boat.setBearing(Bearing.fromDegrees(360 - boat.getBearing().degrees()));
     }
 }