Integration of a lot of HLT paths from different PAGs meant to the Run2 menu; FastSim customization for a few of them

We integrate here the following tickets in the HLT master table and GRun:
- CMSHLT-168: Displaced Dijet Triggers for Exo
- CMSHLT-169: Update of the L1 seed of HLT_LooseIsoPFTau50_Trk30_eta2p1_MET120

We allow the following tickets in GRun (they were already in the master), after green light from STEAM
- CMSHLT-133: JETMet double jet triggers for HFJec determination
- CMSHLT-137: Add paths for VBF H(inv)
- CMSHLT-145: Integration of BPH HLT efficiency paths
- CMSHLT-155: BPH Quad and Triple muon paths
- CMSHLT-162: Update of the muon paths (in particular: new L2MuonReco)

Fix prescales for:
- CMSHLT-160: New tau paths

FastSim fixes for CMSHLT-168