Common Isolation & Selection Frameworks 72X Edition

#4685 + Code review comments and improvement of user interface.
TWiki: https://twiki.cern.ch/twiki/bin/viewauth/CMS/CommonIDAndIsolationFW#Calculating_the_ID_Checksum

Also integrates code into MiniAOD, right now only electron IDs are embedded.

No ID code is run in the standard reconstruction at present.
We will need to talk to Validation/DQM about how to port the IDs that are used there into the framework.

Backports: 71X - #5015, 70X - #5014

@ikrav @Sam-Harper @arizzi

"Analysis" code should not be included in the standard reco sequences.
If the goal is to repurpose instead of moving, all of these added packages will need to be added at least to the "reco" category for signoff in code integration