EP code update

[BetterWang]

Fix table in comment.
Fix eta range for 1st order tracker EP.
Fix 1st order EP momentum conserving weight.
This PR is meant to be integrated with #14819 for a reprocess of 2015 PbPb data with pixel tracks.
@mandrenguyen

[cmsbuild]

A new Pull Request was created by @BetterWang (Quan Wang) for CMSSW_7_5_X.

It involves the following packages:

RecoHI/HiEvtPlaneAlgos

@cmsbuild, @cvuosalo, @slava77, @davidlange6 can you please review it and eventually sign? Thanks.
@jazzitup, @dgulhan, @yenjie, @kurtejung, @mandrenguyen, @richard-cms, @yetkinyilmaz this is something you requested to watch as well.
@slava77, @Degano, @smuzaffar you are the release manager for this.

cms-bot commands are list here #13028

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/13460/console

[cmsbuild]

+1
Tested at: f805fc7
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14847/13460/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14847/13460/summary.html

[slava77]

+1

for #14847 f805fc7

• code changes look OK: updates only in the event plane code
• jenkins tests pass and comparisons with baseline show no difference
  • there are some random differences in correctedEnergyUncertainty in validateJR plots, which is due to a missing initialization that wasn't ported back from 76X/8X

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_7_6_X is complete. This pull request requires discussion in the ORP meeting before it's merged. @slava77, @davidlange6, @Degano, @smuzaffar

[davidlange6]

+1