Added Flow Meter

Added flow meter
Added Scaling for READ (when test is not running)

The user can now select the scaling from an enumerated value in real
time to reflect the actual value of the sensed item.  When the system is
set to test, the selection disappears but returns when the test is
complete.  As it stands, the selection does not roll over to the wizard.
I want to test this functionality prior to implementing through out the
system
Committing new changes