Adding new AugmentedPoolStreamExtension and StreamSelectorTool to allow augmenting DAOD-PHYS
New feature development: allows adding Run2-style (skimmed) DAOD to Run3 DAOD-PHYS[LITE] stream.
Run2StreamExt = MSMgr.NewPoolRootStreamExtension( Run2StreamName, "StreamDAOD_PHYS" )
See: Core Meeting
Edited by Peter Van Gemmeren