message: Added enter and exit anim to ios
  Even thought they're not used, keeps the NavigationModule render params in step
diff: @@ -19,7 +19,7 @@ RCT_EXPORT_MODULE();
  return dispatch_get_main_queue();
  }
  -RCT_EXPORT_METHOD(render:(NSInteger)crumb tab:(NSInteger)tab titles:(NSArray *)titles appKey:(NSString *)appKey)
  +RCT_EXPORT_METHOD(render:(NSInteger)crumb tab:(NSInteger)tab titles:(NSArray *)titles appKey:(NSString *)appKey enterAnim:(NSString *)enterAnim exitAnim:(NSString *)exitAnim)
  {
  UINavigationController *navigationController;
  UIViewController *rootViewController = [UIApplication sharedApplication].keyWindow.rootViewController;
  