- [x] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### What problem does this feature solve? 在调用tab的change或tabClick事件中,一般只拿到key(key一般是id,或者index),拿到key后,还需要在数组中把所需要的扩展信息取出来,这样操作比较麻烦。 ### What does the proposed API look like? 在TabPane里增加了data之后,当触发change或tabClick事件时,就可以拿到对应的扩展属性。 <!-- generated by issue-helper. DO NOT REMOVE -->