Charlie projection

For this to run you have to get our changes to CMSSW, too
(inclusion of and changes to the JetAlgorithms and JetProducers: https://github.com/hannes-kit/cmssw/tree/muell149/merged_5_3_11)
- added subjet-filterjet algorithm and heptoptagger
- jets with subjets are store as BNsubfilterjet and BNtoptagjet
- BNmaker now uses a function to convert pat::jets to BNjets