Remove circular dependency and fix checksum for class reco::CATopJetTagInfo.

[wmtan]

In ROOT 5.34, and ROOT 6, class checksums depend on the base class.
Because of a missing link dependency, edmCheckClassVersion calculated the wrong checksum for class reco::CATopJetTagInfo.
Unfortunately, adding the missing link dependency would create an explicit mutual dependency between packages DataFormats/JetReco and DataFormats/BTauReco.
This pull request moves the definition of this class from DataFormats/JetReco to DataFormats/BTauReco, breaking the cyclic dependency, and also fixes the checksum.
The problem with edmClassVersion needs to be fixed separately, because the checksum it calculates can depend on build order of the packages.
This pull request also adds missing link dependecies on DataFormats/BTauReco, which, while not technically necessary due to the fact that all member functions of CATopJetTagInfo are in-lined.
Nonetheless, it is bad practice to omit package link dependencies for this reason.
Please expedite this critical pull request, bypassing signatures if not signed in a timely manner.
However, do not bypass testing, comparisons, and all that!!

[cmsbuild]

A new Pull Request was created by @wmtan for CMSSW_7_4_X.

Remove circular dependency and fix checksum for class reco::CATopJetTagInfo.

It involves the following packages:

CommonTools/RecoAlgos
DQM/Physics
DataFormats/BTauReco
DataFormats/JetReco
HLTrigger/JetMET
RecoJets/JetAlgorithms
RecoJets/JetProducers

@perrotta, @cmsbuild, @nclopezo, @cvuosalo, @fwyzard, @Martin-Grunewald, @deguio, @slava77, @danduggan can you please review it and eventually sign? Thanks.
@rappoccio, @imarches, @yslai, @acaudron, @TaiSakuma, @Martin-Grunewald, @ahinzmann, @nhanvtran, @schoef, @ferencek, @mariadalfonso, @pvmulder this is something you requested to watch as well.
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[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

+1
Tested at: 53f3aa2
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7298/2013/summary.html

[Martin-Grunewald]

+1

[slava77]

+1

for #7298 53f3aa2
jenkins compiles and runs OK .. (CATopJetTagInfo appear only in the PAT/miniAOD step)

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_4_X IBs unless changes (tests are also fine). This pull request will be automatically merged.