Changed box to boat mesh

- Mesh needs to be rotated -90 degrees on X
- STL file has been added to assets

#story[1196]

racevisionGame/src/main/java/visualiser/model/View3D.java

@@ -9,9 +9,6 @@ import javafx.scene.shape.Shape3D;
 import javafx.scene.transform.Rotate;
 import javafx.scene.transform.Translate;
 
-import java.util.ArrayList;
-import java.util.List;
-
 /**
  * Control for rendering 3D objects visible through a PerspectiveCamera. Implements Adapter Pattern to
  * interface with camera, and allows clients to add shapes to the scene. All scenes contain sea plane and