public DebugTools getNewDebugTools() {
        return new DebugTools(assetManager);
    }
Instantiate an app state to visualize the specified space. This constructor should be invoked only by
BulletAppState.

@param space physics space to visualize (not null, alias created)
jme3-jbullet/src/main/java/com/jme3/bullet/debug/BulletDebugAppState.java