@Override
    protected VRT3DSceneNavigator createViewInstance(ThemedReactContext reactContext) {
        return new VRT3DSceneNavigator(reactContext, mPlatform);
    }
SceneNavigatorManager for building a {@link VRT3DSceneNavigator}
corresponding to the Viro3DSceneNavigator.js control.
android/viro_bridge/src/main/java/com/viromedia/bridge/component/VRT3DSceneNavigatorManager.java