complete transitioning preparelocal to args via JSON

bulding up on #5276 and #5287 two things are needed in order to fully deprecated old code and remove it

[ ] make this use the JSON file. or deprecate it !! https://github.com/dmwm/CRABClient/blob/28add710e8594491093bc35b433294014302ac47/src/python/CRABClient/Commands/preparelocal.py#L89
[ ] put all JSON files in a single tarball in and expand it e.g. in CMSRunAnalysis.sh so to preserve the possibility to submit jobs locally as per https://twiki.cern.ch/twiki/bin/view/CMSPublic/CRABPrepareLocal#HTCondor_submission (those instructions will need to be updates)
- alternatives
  - have a single JSON file and pass the jobId to CMSRunAnalysis.py. I had played with this idea already for #5287 but I wanted to preserve an easy way to look a the arguments with cat when working interactively in the local directory.
  - Maybe make a tarball with the individual JSON and expand it in run_job.sh as done now for CMSRunAnalysis.tar.gz ?

dmwm / CRABClient