Improved L1T Integration Testing

[mulhearn]

Now that we have a nominally working product, we need to scale up our L1T integration testing to be more stringent to reduce regressions. We want fast tests which test all core functionality. For now keeping track of good tests as they come to mind:

• Unity of the DIGITORAW + RAWTODIGI sequence
• Unity of L1 + DIGITORAW + RAWTODIGI + RE-EMULATION
• Something with L1REPACK... Unity after SIM?
• HLT tests, to make sure we don't break HLT work flows.
• Coarse check of efficiency and rate.
• CMSSW config file checks via runTheMatrix -l limited --command=--no_exec and maybe calling
  python on results.

Feel free to suggest new tests.

At the moment, the regimen is simply the following tests

cmsRun L1Trigger/L1TCommon/test/runL1T.py
cmsRun L1Trigger/L1TCommon/test/reEmul.py
cmsRun L1Trigger/L1TCommon/test/runStandardSequences.py

Plus calo dev teams work flows:

1. unpack S2Calo and create ntuples
   cmsDriver.py l1Ntuple -s RAW2DIGI,L1Reco --era=Run2_2016 --customise=L1Trigger/L1TNtuples/customiseL1Ntuple.L1NtupleRAW --conditions=auto:run2_data -n 10 --data --filein=/store/data/Run2015D/ZeroBias/RAW/v1/000/260/627/00000/00A76FFA-0C82-E511-B441-02163E01450F.root

2. as 1) but include re-emulation
   cmsDriver.py l1Ntuple -s RAW2DIGI,L1Reco --era=Run2_2016 --customise=L1Trigger/Configuration/customise_Stage2Calo.Stage2CaloFromRaw --customise=L1Trigger/L1TNtuples/customiseL1Ntuple.L1NtupleRAWEMU --conditions=auto:run2_data --geometry=Extended2016,Extended2016Reco -n 10 --data --filein=/store/data/Run2015D/ZeroBias/RAW/v1/000/260/627/00000/00A76FFA-0C82-E511-B441-02163E01450F.root

3. as 2) but add AOD info to the ntuple
   cmsDriver.py l1Ntuple -s RAW2DIGI,L1Reco --era=Run2_2016 --customise=L1Trigger/Configuration/customise_Stage2Calo.Stage2CaloFromRaw --customise=L1Trigger/L1TNtuples/customiseL1Ntuple.L1NtupleAODRAWEMU --conditions=auto:run2_data --geometry=Extended2016,Extended2016Reco -n 10 --data --filein=/store/data/Run2015D/SingleMuon/RAW-RECO/MuTau-PromptReco-v4/000/260/627/00000/00C3E929-6D84-E511-AFDF-02163E0146A5.root

Plus TSG work flows as read from:
https://twiki.cern.ch/twiki/bin/view/CMSPublic/SWGuideL1TStage2Instructions

[mulhearn]

Quite some progress on this one, particularly as of v9.4 in integration branch. I still have some things to fix for the usability of the new integration testing tool, before I release this to developers to start trying it out.