Backport from 75X (#8522, #8946, #9018)

[ryonamin]

(From #8522)
Modified METplusTrack conf, MonoJet conf. Added LowPtTrimuon conf. Introduced turnOnSumEt to set bins separately from turnOn of Pt.

(From #8946)
Update path names and binnings.

(From #9018)
Modified paths. Fixed a bug in MonoJet conf. Remove DisplacedDimuonDijet. recPhotons label in DisplacedMuEG and DiPhoton is replaced to recElectrons label.
Added paths :
HT:
HLT_PFHT750_4Jet_Pt50_v
HLT_PFHT800_v
HLT_Photon90_CaloIdL_PFHT600_v
HighPtElectron:
HLT_Ele115_CaloIdVT_GsfTrkIdT_v
DiPhoton:
HLT_Photon42_R9Id85_OR_CaloId24b40e_Iso50T80L_Photon25_AND_HE10_R9Id65_Eta2_Mass15_v
HighPtPhoton:
HLT_Photon90_CaloIdL_PFHT600_v
SingleMuon:
HLT_Mu55_v
HLT_Mu50_eta2p1_v

[cmsbuild]

A new Pull Request was created by @ryonamin (Ryo Yonamine) for CMSSW_7_4_X.

Backport from 75X (#8522, #8946, #9018)

It involves the following packages:

HLTriggerOffline/Exotica

@cmsbuild, @danduggan, @nclopezo, @deguio can you please review it and eventually sign? Thanks.
You can sign-off by replying to this message having '+1' in the first line of your reply.
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@Degano you are the release manager for this.
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[cmsbuild]

+1
Tested at: 63a2c9f
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9237/4990/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-9237/4990/summary.html

[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_4_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[ryonamin]

May I ask for any feedbacks for this PR? Thank you in advance!

[davidlange6]

+1