[Feature Request] destroyOnClose for Tabs

### Existing Component
Yes

### Component Name
Tabs

### Description
Add `destroyOnClose` flag for tabs (same as in the Drawer component)

From the [Drawer docs](https://element.eleme.io/#/en-US/component/drawer):

> Drawer provides an API called destroyOnClose, which is a flag variable that indicates should destroy the children content inside Drawer after Drawer was closed. You can use this API when you need your mounted life cycle to be called every time the Drawer opens.