Refs NOAA-EMC#619

- When pbspro: add debug=true to native statement; similar
to what already happens but now users can turn it off
- When slurm: add SBATCH_DEBUG=2 (-vv, very verbose) to xml;
exports SBATCH_DEBUG to environment for all jobs

Refs NOAA-EMC#619

Set SBATCH_DEBUG via the envars in the xml instead
of as an ENTITY at the top. The setting now exports
with job submissions.

Refs NOAA-EMC#619

* origin/develop:
  Return ocnanalrun npes resource setting back to previous value (NOAA-EMC#2386)
  Add new BUFR table file parm/product/bufr_ij9km.txt for GFSv17 C1152 (NOAA-EMC#2383)
  Add global-workflow infrastructure for ocean analysis recentering task (NOAA-EMC#2299)
  Clean out non-gfs top level variables (NOAA-EMC#2366)
  Forgotten templated  DO_VRFY_OCEANDA (NOAA-EMC#2379)
  Add Hercules support for the GSI monitor (NOAA-EMC#2373)
  Reformat snowDA templates to jinja2 (NOAA-EMC#2371)
  Reduce Jenkins messaging to GitHub (NOAA-EMC#2370)
  Adding debug option for all build scripts (NOAA-EMC#2326)
  Sort list of coupler restart files for restart time determination (NOAA-EMC#2360)
  Update stage IC to handle ocean perturbations (NOAA-EMC#2364)
  Turn on C48mx500_3DVarAOWCDA test on hera (NOAA-EMC#2363)
  Move Jenkinsfile into ci subdirectory (NOAA-EMC#2355)

Removing the debug switch setting for SLURM since
it doesn't work as expected.
Also added notes to DEBUG setting in configs to
note that it only works on WCOSS2.

Refs NOAA-EMC#619

- Rename DEBUG to DEBUG_SCHEDULER.
- Add note that it's PBS only and that it sets debug=true.
- Add switch to documentation.

Refs NOAA-EMC#619

Rename variable in setup scripts

Refs NOAA-EMC#619

Based on reviewer feedback and discussion.

Refs NOAA-EMC#619

RTD sample link was not posted in updated PR.
Add missing curly brackets to line.

Refs NOAA-EMC#619