Add event:goal into order_by param for sites API

Please include event:goal into order_by param for sites API

Request:
POST /api/v2/query
“site_id”: “cynosure.com”,
“metrics”: [“visitors”],
“dimensions”: [“event:goal”, “time:day”],
“order_by”: [[“event:goal”, “asc”], [“time:day”, “asc”]],
“date_range”: “7d”,
“pagination”: {“limit”: 5, “offset”: 0}
}

Response:
400 {“error”: “#/order_by/0/0: Invalid value in order_by \”event:goal\””}

Thanks!