Fastsim: HF: use shower library also for run1

[cmsbuild]

rebase of #11674
Automatically ported from CMSSW_7_6_X #11783 (original by @lveldere).

[cmsbuild]

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

Fastsim: HF: use shower library also for run1

It involves the following packages:

FastSimulation/Calorimetry
FastSimulation/Event
SLHCUpgradeSimulations/Configuration

@cmsbuild, @ssekmen, @civanch, @mdhildreth, @lveldere can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @matt-komm, @makortel this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
If you are a L2 or a release manager you can ask for tests by saying 'please test' in the first line of a comment.
@Degano you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[lveldere]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/9044/console

[cmsbuild]

+1
Tested at: 56e5573
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11916/9044/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11916/9044/summary.html

[lveldere]

+1

[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. @davidlange6, @Degano, @smuzaffar

[davidlange6]

+1