Define m_smallStepLength/SmallStepLength with unit to fix ATEAM-638
Define m_smallStepLength/SmallStepLength and m_tSurfaceDrift/SurfaceDriftTime with units to fix https://its.cern.ch/jira/browse/ATEAM-638 not to run unintentionally conversion mulitple times (mm->um->nm->pm->fm ...)
OverlayTest.py -t 2 -n 10 SCT
with Athena master r03 was fine.
RunTier0Tests.py was also fine. RunTier0Tests.log
Edited by Susumu Oda