[case maintain]添加table用例设计，添加粘贴用例设计
[case maintain]添加键盘操作用例设计
[test]删除design文件夹，本身就是多余的
Merge remote-tracking branch 'origin/dev-1.2.4' into dev-1.2.4
[test]更新test list for 1.2.5中table和粘贴
Merge remote-tracking branch 'origin/dev-1.2.4' into dev-1.2.4