* Table: Add `important` rule to `col-resize` cursor

* Table: Add `important` rule to `col-resize` cursor

* Update table-header.js

* [Switch]: Add `allowFocus` prop + blur/focus events

+ Add new `allowFocus` prop
+ Add event emitters for focus & blur events
+ Set `input` $ref `.focus()` on switch click event

* [Switch]: Add styling for when `allowFocus: true`

+ Add styling for when `allowFocus` prop is set to true.
+ Add styling for when input is focused

* [Switch]: Update docs

修复 autocomplete 组件 IE11 下使用搜狗输入法，无法输入中文的问题

* Table: Add `important` rule to `col-resize` cursor

* Table: Add `important` rule to `col-resize` cursor

* Update table-header.js