电费充值接口
1、添加充值卡
网关URL：/rest/Power/addCard
2、编辑充值卡
网关URL：/rest/Power/editCard
3、电费详情/删除
删除URL：/rest/Power/delCard
详情URL：/rest/Power/cardInfo
2、充值下单请求（post 表单提交）
网关URL：/rest/Power/pushOrder
失败返回数据格式：
{"code":"1003","msg":"app_key不能为空","time":"1624868000","data":null}
成功返回数据格式：
{"code":"0000","msg":"推送成功","data":{"order_number":"xxxx"}}
