Cluster Action

集群连接信息

```
GET /rest/v2/manager/cluster/cluster_info/conn_info
Response:
    "msg": "success",
    "code": 0,
    "data": {
        "http": [
            "127.0.0.1:8030"
        "mysql": [
            "127.0.0.1:9030"
        ]
    },
    "count": 0
```