DerivationFrameworkMCTruth: adding DSIDs to the list for heavy flavour origin classifier
The ttH(bb) legacy analysis would like to try out some dedicated ttbar FSR variation samples to remedy pulls. The four DSIDs need to be added to the heavy flavour classification tool in the R21. For more details, see https://its.cern.ch/jira/browse/ANALYSISTO-1365
This MR adds these 4 DSIDs.
tagging: @boeriu