add efficiency SF tool to BoosteJetTaggers
We'd like to add functionalities to decorate tagging efficiency SF to the given jet. Some details are found at: https://gitlab.cern.ch/tnobe/athena/blob/21.2-tnobe-testBJT/Reconstruction/Jet/BoostedJetTaggers/README_SFprovider.md
Edited by Takuya Nobe