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