Clean up GFS post-processing workflow scripts and add back ICEG, ICETMP

[WenMeng-NOAA]

This PR addresses the following issues:

1. Clean up GFS post workflow scripts #1097 to clean up the legacy GFS post-processing workflow scripts in UPP repository.
2. Add ICEG Back as the GFS ATOMS Product #1149 to add ICEG back in GFS control files
3. Remove legacy gfs control files
4. Update permissions of IFI scripts in ci/jobs-dev directory #1151 to update permissions of IFI scripts in ci/jobs-dev directory

[aerorahul]

looks good to me.
these capabilities have been implemented in the global-workflow, and have been tested by the UPP team.

[WenMeng-NOAA]

looks good to me. these capabilities have been implemented in the global-workflow, and have been tested by the UPP team.

@aerorahul That's right. Thanks!

[KateFriedman-NOAA]

Looks good, thanks @WenMeng-NOAA !

[WenMeng-NOAA]

@gspetro-NOAA This PR is not ready for conducting the UPP RTs yet. Could you confirm the script 'run_upp' under scripts/ can be removed?

[ChristopherHill-NOAA]

@WenMeng-NOAA According to the release/gfs_v16 branch, the variable ICEG is not featured within files postcntrl_gfs_anl.xml or postxconfig-NT-GFS-ANL.txt. Should we proceed to add ICEG to postcntrl_gfs_anl.xml and postxconfig-NT-gfs-anl.txt within this PR?

[WenMeng-NOAA]

@WenMeng-NOAA According to the release/gfs_v16 branch, the variable ICEG is not featured within files postcntrl_gfs_anl.xml or postxconfig-NT-GFS-ANL.txt. Should we proceed to add ICEG to postcntrl_gfs_anl.xml and postxconfig-NT-gfs-anl.txt within this PR?

@ChristopherHill-NOAA Good catching. I will revert these changes.

[HuiyaChuang-NOAA]

Looked good. Thank you.

[WenMeng-NOAA]

@gspetro-NOAA You may start the UPP RTs on R&D machines. For your reference, my RTs on Hera are at /home/Wen.Meng/stmp2/UPP-RTs:
Wen.Meng@hfe08 UPP-RTs$ ls -ltr */*diff
-rw-r--r-- 1 Wen.Meng stmp 75 Feb 26 17:19 rap_2020072316_pe_test/WRFPRS.GrbF16.diff
-rw-r--r-- 1 Wen.Meng stmp 21229 Feb 26 17:27 fv3gfs_2019083000/gfs.t00z.master.grb2f006.diff
-rw-r--r-- 1 Wen.Meng stmp 21229 Feb 26 17:27 fv3gfs_2019083000_pe_test/gfs.t00z.master.grb2f006.diff```

There will be a baseline update for gfs since two variables are added in the gfs master file in this PR.

[WenMeng-NOAA]

The UPP RTs have been completed on WCOSS2. The gfs baseline needs an update since two new variables are added in the master file.

854:2274757959:d=2019083000:ICEG:10 m above mean sea level:6 hour fcst:
1052:2891375279:d=2019083000:ICETMP:surface:6 hour fcst:

[WenMeng-NOAA]

@BenjaminBlake-NOAA Please review the ifi job script updates.

[BenjaminBlake-NOAA]

@WenMeng-NOAA The IFI script changes look good to me - thanks