CMS generator cards as "notes" in MC 2015 metadata

[katilp]

Make an McM query to check how often generator cards are recorded as an HTML file in "notes" for the 2015 MC

e.g. https://cms-pdmv.cern.ch/mcm/requests?produce=%2FExtendedWeakIsospinModel_mumujj_L15000_M1500_CalcHEP%2FRunIIFall15MiniAODv2-PU25nsData2015v1_76X_mcRun2_asymptotic_v12-v1%2FMINIAODSIM&page=0&shown=281474976710655
and the corresponding dictionary
https://cms-pdmv.cern.ch/mcm/public/restapi/requests/get/EXO-RunIIFall15MiniAODv2-01039 with

"notes": "https://github.com/cms-sw/genproductions/blob/1b65fffa802c081907b40fde8fc49dc2bf60d5eb/bin/CalcHEP/cards/production/13TeV/ExtendedWeakIsospinModel/LHEHeaders/ExtendedWeakIsospinModel_mumujj_L15000_M1500_nnpdf30lo-single.txt"

These cards are in https://github.com/cms-sw/genproductions/tree/master/bin

[katilp]

Superseded by #97 - closing