Update the monitor code

Changes made to the monitor code to remove all warnings from
systemsupport.py.  Note there are warnings in oneUpMon, however these do
not appear to be valid, as some of them complain about attributes not
existing, when they clearly do (Qt.AlignBottom for instance)

monitor/simple_monitor.py

@@ -13,7 +13,7 @@ Replace the stub return values with your real implementations later.
 
 import sys
 from typing import Tuple
-from oneUpSupport import systemData
+from systemsupport import systemData, CPULoad
 
 sysdata = systemData()