Bug 1520 - Improve the naefs scripts to remove old/unused variables, add define of pqm,etc

[BoCui-NOAA]

In the next NAEFS upgrade,improve the naefs scripts to

• remove “wait” (in jobs/JNAEFS_FNMOC_ENS_DEBIAS, jobs/JNAEFS_GEFS_DEBIAS, jobs/JNAEFS_GEFS_PROB_AVGSPR, jobs/JNAEFS_PROB_AVGSPR, scripts/exnaefs_cmcensbc_prep.sh, scripts/exnaefs_cmcens_post.sh, scripts/exnawips_conus_ndgd_enscqpf.sh, scripts/exnawips_fnmoc.sh.ecf.grib2,
  scripts/exnawips_gefs_enscqpf.sh, scripts/exnawips_naefs.sh, and most oh ush scripts)
• remove ${PMI_FORK_RANK} that was from WCOSS1 in most of j-job and ex-script scripts.
• add pgm available define to clean the “WARNING: pgm variable not defined” msg (from prod_util ush/startmsg )

Please refer to page #23 example 9 in https://www.nco.ncep.noaa.gov/idsb/implementation_standards/ImplementationStandards.v11.0.0.pdf?

[BoCui-NOAA]

PR #17 submitted to the develop branch to remove “wait” in jobs/scripts/ush.

[BoCui-NOAA]

Submitted PR #18 to remove ${PMI_FORK_RANK} in most of j-job and ex-script scripts.

[BoCui-NOAA]

There are a lot of "WARNING: pgm variable not defined" messages in the log files. It is caused by calling 'startmsg' without exporting the macro pgm first.