added resolution smearing for topjets

* applying the JER correction on the collection of CA8 jets for the CMS-TopTagger. this is what the all-hadronic analysis is doing and, after discussing this with Thomas, this is supposed to be what is recommended by the jet experts

* cleaned the topjets collection to include only the candidates for the CMS TopTagger (candidates are defined as the jets passing the kinematic cuts and not overlapping with the lepton)