[feature-request] [TabPane]:增加手势

[zhougonglai]

What problem does this feature solve?

自用Tabs > TabPane,顺势加了hammer.swipe,但是TabPane的swipe.left的反应却是swipe.right的效果.我想应该是current的手动切换没法很好的对应上 TabPane 内置的动画方向判断. 所以希望团队能够给TabPane内置上[Swiper]的手势操作

What does the proposed API look like?

实现了 tab-bar swiper 同样的效果 https://github.com/didi/mand-mobile/edit/master/components/tab-bar/demo/cases/demo6.vue