Monojet additions needed for the flat trees

[zdemirag]

Gen info for the dark matter particle (4 vector)
Gen info for the fat jets and the ak4 jets (4 vector)
quark / gluon likelihood --> Figure it out how it works for bambu

• fat jet gen pruned mass --> Add this to Nero
• fat jet gen tau2/tau1 --> Add this to Nero
• Raw Met/Phi

[dabercro]

So I have now the Gen Info for the dark matter and ak4 jets.
To still do:

• Raw met/phi does exist in a newer version of Nero. (Maybe just the MINIAOD), but it is not in Bambu (or at least the version we used for producing Nero so far.)
• Gen information for fat jets is not existing.
• Haven't looked at bambu QGL yet.