Merging

ADDITIONS

• Adding the datacard creation and a minimal combine setup
  • Adapted from LLR code: systematics (some of them may not be needed, copied all in case they are), systematics reader, datacard creation, combine templates
  • Copied directly from LLR code: HHModel
  • Add cv, c2v, kl, kt options to do scans.
  • Wrapper tasks
  • Scan task and plot
• To get the same background groups as LLR, separated the "other" processes in the different background groups (single top process was already included in the processes.py file but I added another one just to be a part of the "others" process. Should be changed, of course).

MODIFICATIONS:

• Modified some lines in the binning optimization (hmc/util.py and hmc/tasks/analysis.py) in order to not to run it in case its impossible (returning the normal binning instead of raising an exception). Also, modified two lines that were crashing regarding the inputs. Please @mrieger could you check this?
• In the TrainingOutputPlot task left only the tags "dnn_output" and "dnn_output_merged_mpp" (the two others are commented) as are the ones that give more meaningful results (and the one we use actually)