Jets

[thaarres]

Hi all! @dani is being so kind and going through the JetsNtuplizer.
I had a chat with @cgalloni and the three of us propose the following:
Only keep PUPPI AK8 (these are standard) BUT add CHS tauN + softdrop+pruned mass as userfloats. The names will be such that jetAK8 branches will refer to PUPPI. The specific CHS userfloats will have CHS in their names. tau2 will for instance be PUPPI tau 2. PUPPI softdrop mass will just be jetAK8_softdrop_mass
Only keep AK4 CHS (these are standard). This means no change essentially.

Camilla want to launch a production ASAP and will do so once dani and I make the above changes. Then we will continue cleaning out the code after (removing pruned subjets etc)