add FTAG variables to PHYSLITE [ATLASG-2522]
- Add ftag varibles to PHYSLITE according to https://docs.google.com/spreadsheets/d/1XKdDEvGH2mYPuPm8wwDxo_o75O-rAo4T6P1NrrduIZs/edit#gid=1373413052 here.
- Tested on a data and a MC sample. The event size change is around 3.7%.
Edited by Ligang Xia