1. Create pandas_extensions.py

2. Remove unused imports

Signed-off-by: Matthew Stidham <stidmatt@gmail.com>

py-scripts/test_l3_scenario_throughput.py

@@ -33,11 +33,9 @@ import logging
 import paramiko as pmgo
 from paramiko.ssh_exception import NoValidConnectionsError as exception
 import xlsxwriter
-from bokeh.io import output_file, show
+from bokeh.io import show
 from bokeh.plotting import figure
 from bokeh.models import LinearAxis, Range1d
-from bokeh.models import HoverTool, Range1d
-from bokeh.layouts import row
 from datetime import datetime
 import socket