Lepton ID and iso update
- Updated the electron and muon id and isolation defitinions
- Loose and tight id are now the same, but kept the structure intact for the future
- I can also add the isotrack collection, but I wasn't sure how you would like me to implement that. Should I implement it as a new collection, or just a veto on event-level selection? If former, would you please show me how the rest of the builders are called so that when I write the builder for isotracks, it is also called and constructed? If latter, where can I find the builder for event-level flags, if one exists at all?