Add Dstar_D0_K3pi.dec Dstar_D0_Kpi.dec from 80X. Fix Bu_D0Pi_KPiPi.dec

[taweiXcms]

Add EvtGen files from 80X:
Dstar_D0_K3pi.dec Dstar_D0_Kpi.dec

Update EvtGen file:
Bu_D0Pi_KPiPi.dec

@mandrenguyen , @yenjie, @ginnocen

[cmsbuild]

A new Pull Request was created by @taweiXcms (tawei) for CMSSW_7_5_X.

It involves the following packages:

GeneratorInterface/ExternalDecays

@vciulli, @covarell, @thuer, @cmsbuild, @bendavid, @davidlange6, @govoni can you please review it and eventually sign? Thanks.
@inugent, @mkirsano this is something you requested to watch as well.
@slava77, @Degano, @smuzaffar you are the release manager for this.

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[taweiXcms]

Dear contacts/managers
This is a PR request for D* EvtGen files that will be needed for official MC requests.
Included is a fixed of the previous D0 EvtGen file to increase the filter efficiency.
Please let us know if there is anything in addition that is needed.
Thank you for you help.

[govoni]

+1

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/10415/console

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs after it passes the integration tests 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

[cmsbuild]

+1
Tested at: be17647
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-12826/10415/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-12826/10415/summary.html

[davidlange6]

+1