Track overlay configuration
The major change is related to the JIRA issue [ATLASSIM-6228](https://its.cern.ch/jira/browse/ATLASSIM-6228)
. A new flag, "flags.Digitization.ReadParametersFromDB", is added to the DigitizationConfigFlags.py file. The flag, when set to False, will prevent the creation of the "/Digitization/Parameters" folder when running the track reconstruction algorithm on pileup RDOs.
A new configuration, InDetTrackScoringToolsConfig, is added to get the InDetTRT_StandaloneScoringTool. Also, the LArNoisyROAlg is updated, it needs a Bkg_EventInfo key for the EventInfo object, which is set accordingly in the configuration.
ping @wleight
Edited by Fang-Ying Tsai