[GIE & Storage] Query an edge property is not supported yet

**Is your feature request related to a problem? Please describe.**

```python3
>>> client.submit("g.E(1001494).valueMap()").all().result()

~/Library/Python/3.9/lib/python/site-packages/gremlin_python/driver/protocol.py in data_received(self, message, results_dict)
135 str(message), str(results_dict))
136 del results_dict[request_id]
--> 137 raise GremlinServerError(message['status'])
138
139 def _kerberos_received(self, message):

GremlinServerError: 500: Status{code=UNKNOWN, description=submit job error Build job failure: user defined error: Query store error in graph_proxy GraphScope storage does not support get_edge for now, cause=null}
```