Porting the TTTrack classes in 81X

[cmsbuild]

This PR concludes the L1 track trigger objects porting in the 81X flow.

Affected packages are:

DataFormats/L1TrackTrigger: addition of the TTTrack related classes, modification of the TTCluster classe (new method to get the central cluster position)
SimTracker/TrackTriggerAssociation: TTTrack association code.
L1Trigger/TrackTrigger: modification of the TkOnlyGeometry python scripts in order to adapt to the new geometry definition.

Automatically ported from CMSSW_8_1_X #16303 (original by @sviret).
Automatically ported from CMSSW_9_0_X #16631 (original by @sviret).
Please wait for a new IB (12 to 24H) before requesting to test this PR.

[cmsbuild]

A new Pull Request was created by @cmsbuild for master.

It involves the following packages:

DataFormats/L1TrackTrigger
L1Trigger/TrackTrigger
SimGeneral/TrackingAnalysis
SimTracker/TrackTriggerAssociation

@civanch, @mdhildreth, @cmsbuild, @rekovic, @kpedro88, @mulhearn, @davidlange6 can you please review it and eventually sign? Thanks.
@abbiendi, @kreczko, @battibass, @makortel, @threus, @sviret, @sdevissc, @GiacomoSguazzoni, @jhgoh, @VinInn, @Martin-Grunewald, @calderona, @HuguesBrun, @rovere, @trocino, @dgulhan this is something you requested to watch as well.
@Muzaffar, @davidlange6, @smuzaffar you are the release manager for this.

cms-bot commands are listed here #13028

[kpedro88]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/18225/console Started: 2017/03/07 18:22

[cmsbuild]

+1
Tested at: c867525
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-17740/18225/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-17740/18225/summary.html