update the content of PFAOD 

This PR extends the contents of PFAOD with the contents necessary to produce pat::Jets later. 

In particular, these contents are necessary to run [patTuple_onlyJets_cfg.py](https://github.com/cms-sw/cmssw/blob/CMSSW_5_3_22_patch1/PhysicsTools/PatAlgos/test/patTuple_onlyJets_cfg.py).