Implemented pretty printing for Field objects

comsdk/research.py

 import pickle
 from datetime import date
 from typing import Sequence, Optional, Mapping, Any
+from typing_extensions import TypedDict
 import json
 
-from mypy_extensions import TypedDict
-
 from comsdk.comaux import *
 from comsdk.communication import BaseCommunication, LocalCommunication, SshCommunication, Host
 from comsdk.distributed_storage import *