Updates for makeCombinePlots.py and makeParametricModelDatacard.py

Datacards:
- Add lN uncertainty for triggr efficiency
- Add PDF uncertainties for CiC

Plots:
- automatic h2gglobe path location
- store txt file with results
Merge pull request #392 from amarini/fix_extraTags_newCombine

Move To Combine Head
Merge pull request #393 from musella/topic_datacard_and_plots

Updates for makeCombinePlots.py and makeParametricModelDatacard.py