Contact support list

```javascript WXAPI.contactList() ``` ```json { "code": 0, "data": [ { "t": "tel", "v": "13500000000" }, { "t": "wx", "v": "wx456" }, { "t": "qq", "v": "123" } ], "msg": "success" } ``` + t type: wx WeChat ID; tel contact number; mail email address; txt plain text; pic picture link address + v value