Revert "Revert "Update py_json files to be compatible with pip standards""

This reverts commit 6b0322cafa.

py-json/test_utility.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 
 """
 Candela Technologies Inc.
@@ -9,19 +10,10 @@ Date :
 """
 
 import sys
-from pprint import pprint
-from uuid import uuid1
 
 if 'py-json' not in sys.path:
     sys.path.append('../py-json')
-from LANforge import LFUtils
-from LANforge import lfcli_base
 from LANforge.lfcli_base import LFCliBase
-from LANforge.LFUtils import *
-import realm
-from realm import PortUtils
-import argparse
-import datetime
 import time
 import matplotlib.pyplot as plt
 import threading