Method spinner

src/ui/components/Progress.ts:35–37

* 创建旋转加载器

(text: string = '加载中...', options: SpinnerOptions = {})

   * 创建旋转加载器
   */
  public static spinner(text: string = '加载中...', options: SpinnerOptions = {}): Spinner {
    return new Spinner(text, options);
  }

  /**
   * 创建进度条