reco comparisons: add DNN ID plots for electrons and photons

[slava77]

To add supporting plots for ID variables added in cms-sw/cmssw#35403

[cmsbuild]

A new Pull Request was created by @slava77 (Slava Krutelyov) for branch master.

@cmsbuild, @smuzaffar, @iarspider, @ddaina can you please review it and eventually sign? Thanks.
@perrotta, @dpiparo, @qliphy you are the release manager for this.
cms-bot commands are listed here

[slava77]

@cmsbuild please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a63fc0/20259/summary.html
COMMIT: 880a2d5
CMSSW: CMSSW_12_2_X_2021-11-04-1100/slc7_amd64_gcc900
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cms-bot/1659/20259/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 12 differences found in the comparisons
• DQMHistoTests: Total files compared: 42
• DQMHistoTests: Total histograms compared: 2901890
• DQMHistoTests: Total failures: 0
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2901868
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 41 files compared)
• Checked 177 log files, 37 edm output root files, 42 DQM output files
• TriggerResults: no differences found

[slava77]

the logs look OK (reconfirming already what I've seen in local tests).

It may be more practical to merge this soon after jenkins moves to CMSSW_12_2_X_2021-11-04-2300, which has cms-sw/cmssw#35984; prior to that this PR will show occasional random differences in two variables that are being read from uninitialized memory (out of range)

[smuzaffar]

+external
Thanks @slava77