Add DQM modules for single lepton+HT SUSY triggers

Replacing pull request #6434 to avoid problematic rebase.

PR adds DQM modules for single lepton+HT SUSY triggers not included in #6255:
HLT_Ele15_IsoVVVL_BTagtop8CSV07_PFHT400
HLT_Ele15_IsoVVVL_PFHT400_PFMET70
HLT_Ele15_IsoVVVL_PFHT600
HLT_Ele15_PFHT300
HLT_Mu15_IsoVVVL_BTagCSV07_PFHT400
HLT_Mu15_IsoVVVL_PFHT400_PFMET70
HLT_Mu15_IsoVVVL_PFHT600
HLT_Mu15_PFHT300
if you are trying to accomplish the equivalent of 

if(num_csvl>=4) h_btagTurnOn_den_->Fill(4);
if(num_csvl>=3) h_btagTurnOn_den_->Fill(3);
…etc.

then the switch statement you have is not correct. Can you clarify what you would like to happen for num_csvl=4 and num_csvl=1?