Changed the Hadronizer and scripts to work with Sherpa 2.2.0

[thuer]

Changed the Interface and Scripts to work with Sherpa 2.2.0

The changes to the Sherpack retrieving method (from frontier to normal cp) #11985 are not yet merged, should I cherry-pick the commits to this pull request and update the RelVal fragments?

[cmsbuild]

A new Pull Request was created by @thuer (Sebastian Thüer) for CMSSW_8_0_X.

It involves the following packages:

GeneratorInterface/SherpaInterface

@vciulli, @covarell, @thuer, @cmsbuild, @bendavid, @davidlange6, @govoni can you please review it and eventually sign? Thanks.
@mkirsano this is something you requested to watch as well.
@Degano you are the release manager for this.

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[bendavid]

Yes, sorry, we missed re-signing that one after the last update. Please include those commits here (since they are no longer needed in 76x)

[thuer]

Sorry for the many small commits, they were already in the previous pull request and it was easier to just cherry pick them

[cmsbuild]

Pull request #12462 was updated. @vciulli, @covarell, @thuer, @cmsbuild, @bendavid, @davidlange6, @govoni can you please check and sign again.

[covarell]

+1

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/9923/console

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_8_0_X IBs after it passes the integration tests. This pull request requires discussion in the ORP meeting before it's merged. @slava77, @davidlange6, @Degano, @smuzaffar

[cmsbuild]

+1
Tested at: 97a575d
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-12462/9923/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-12462/9923/summary.html

[davidlange6]

+1