Track history fixes backport80 x

[smoortga]

This PR is simply a backport to 80X from the following PRs in 81X (already merged)
#16161
#16280
#16367 (Fully-approved, orp-pending)

It applies some fixes to the TrackHistory code needed for Track monitoring in the BTV group.

[cmsbuild]

A new Pull Request was created by @smoortga for CMSSW_8_0_X.

It involves the following packages:

SimTracker/TrackHistory
SimTracker/TrackerHitAssociation

@cmsbuild, @civanch, @mdhildreth, @davidlange6 can you please review it and eventually sign? Thanks.
@imarches, @makortel, @threus, @acaudron, @sdevissc, @GiacomoSguazzoni, @rovere, @VinInn, @JyothsnaKomaragiri, @mverzett, @wmtford, @ferencek, @pvmulder, @dgulhan this is something you requested to watch as well.
@slava77, @smuzaffar you are the release manager for this.

cms-bot commands are listed here #13028

[civanch]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/16023/console

[cmsbuild]

+1
Tested at: ec32507
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16377/16023/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16377/16023/summary.html

[civanch]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_8_0_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @slava77, @davidlange6, @smuzaffar

[smoortga]

Dear, @civanch, @mdhildreth, @davidlange6, @slava77, @smuzaffar
May I ask what is the current status of this PR? It has been on 'orp-pending' for 18 days now so I was wondering if this is ready to be merged?

Thanks in advance,
Cheers,
Seth Moortgat

[smoortga]

Dear, @civanch, @mdhildreth, @davidlange6, @slava77, @smuzaffar

Could you please inform me on when this PR might get merged (or what is holding it back to be merged if that is the case)?

Thanks,
Cheers,
Seth Moortgat

[ghost]

Dear @civanch @mdhildreth @davidlange6 @slava77 @smuzaffar
a kind reminder. Thanks

[smoortga]

Dear @civanch @mdhildreth @davidlange6 @slava77 @smuzaffar,
As this PR has been fully signed more than a month ago, could this please be merged? These changes will be needed in order to continue this project and make an implementation in the offline DQM. This is becoming rather urgent since the application for DQM is nearly ready, but can only be merged once this PR has been merged as well.

Thanks,

Cheers
Seth

[davidlange6]

+1