AVR-based CSVv2 taggers, updated SV TagInfos in MiniAOD

[cmsbuild]

This PR adds CSVv2 taggers based on secondary vertices reconstructed using the Adaptive Vertex Reconstructor (Run 1 default). PF-based version of CSVv2+AVR is also added to the standard reco. All new taggers were also propagated to PAT. In addition, SV TagInfos from which the SV info is grabbed and stored in MiniAOD has been updated.

To add a little bit of context. These changes are result of a discussion in yesterday's BTV POG meeting.
Automatically ported from CMSSW_7_4_X #7678

[cmsbuild]

A new Pull Request was created by @cmsbuild for CMSSW_7_5_X.

AVR-based CSVv2 taggers, updated SV TagInfos in MiniAOD

It involves the following packages:

PhysicsTools/PatAlgos
RecoBTag/Configuration
RecoBTag/SecondaryVertex

@nclopezo, @cvuosalo, @monttj, @cmsbuild, @slava77, @vadler can you please review it and eventually sign? Thanks.
@rappoccio, @imarches, @ahinzmann, @acaudron, @mmarionncern, @nhanvtran, @schoef, @ferencek, @mariadalfonso, @pvmulder, @TaiSakuma 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.
@nclopezo, @ktf you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[nclopezo]

+1
Tests already approved in the equivalent of this PR in CMSSW_7_4_X

[slava77]

+1

for #7787 5e6882b
this is the same topic branch and the same commit ID as signed in

#7678 5e6882b

@cmsbuild why is there "orp-pending" signature?
75X PRs shouldn't have one for some time.

[ktf]

We (well, @davidlange6 ;)) do not want to fully open 75X, yet.