Enhancements to GBRForest/Tree for converting TMVA classifiers (75X)

[lgray]

Backport of #10275

@bendavid

[cmsbuild]

A new Pull Request was created by @lgray (Lindsey Gray) for CMSSW_7_5_X.

Enhancements to GBRForest/Tree for converting TMVA classifiers (75X)

It involves the following packages:

CondFormats/EgammaObjects

@ggovi, @cmsbuild, @mmusich, @diguida, @cerminar can you please review it and eventually sign? Thanks.
@apfeiffer1 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.

[diguida]

please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

+1
Tested at: 09afbf2
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10369/11496/summary.html

[ggovi]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs once checked with relvals in the development release cycle of CMSSW (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[lgray]

@ggovi Could you also +1 the back and forward ports of this PR? Thanks!

[davidlange6]

+1