Feature Request: Wrapper for TTree::Draw()

Description

Addresses https://github.com/cms-gem-daq-project/gem-plotting-tools/issues/36

Tool provided for allowing a plot of interest to be made from a list of (chamber_name, scandate) pairings. For complete documentation see the README.md.

Types of changes

[ ] Bug fix (non-breaking change which fixes an issue)
[X] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to change)

Motivation and Context

Quality of life improvement, if you want to make a specific plot, it usually has to be made by hand. This tool will allow you to make an arbitrary plot using the data stored in the TBranches of (ana) ultra scan TTree objects.

How Has This Been Tested?

Running the analysis and making the plots. I've provided some examples.

Screenshots (if appropriate):

Drawing a plot, and then also fitting it.

gemTreeDrawWrapper.py -ilistOfScanDates_TreeDraw.txt --anaType=scurve --treeExpress="Nhits:vcal" --treeDrawOpt=APE1 --treeSel="vfatN==12 && vfatCH==45" --fitFunc="500*TMath::Erf((TMath::Max([2],x)-[0])/(TMath::Sqrt(2)*[1]))+500" --fitRange=70,150 --fitOpt="RM" --fitGuess=110,10,10

Producing a series of plots all at once:

gemTreeDrawWrapper.py -ilistOfScanDates_TreeDraw.txt --anaType=latency --summary --treeExpress="Nhits:lat" --treeDrawOpt=APE1 --treeSel="vfatN==12" --axisMaxY=1000 --axisMinX=39 --axisMaxX=49 --drawLeg

Checklist:

[X] My code follows the code style of this project.
[X] My change requires a change to the documentation.
[x] I have updated the documentation accordingly.
[x] I have added tests to cover my changes.
[x] All new and existing tests passed.

cms-gem-daq-project / gem-plotting-tools