Adding helicity values to the chargeTree.json

[jwgibbs]

Added feature to buildChargeTree.groovy that opens the monitor.hipo files for each run, gets the values from the helicity histograms, and puts hte values in the json file.

[c-dilks]

We should also add a connecting arrow to the documentation flowchart, to indicate this script needs a new input file

https://github.com/JeffersonLab/clas12-timeline/blob/main/qa-physics/docs/docDiagram.md#flowchart

Adding this around line 81 should do it:

      outmonFiles --> buildCT

Messy code needs a messy diagram... :)

[c-dilks]

Thanks!

Now we need to re-run RG-C Summer 2022 QA timelines, to update its chargeTree.json. I believe this is the only run group that needs this; if other datasets need it, we can update their chargeTree.json files upon request.

I'll take care of this and will submit a PR in cla12-qadb.