Make NEMS point to NCEPLIBS-pyprodutil develop branch about nems

[MinsukJi-NOAA]

@junwang-noaa @RatkoVasic-NOAA

• Tested NEMSCompsetRun -f on latest develop branch of ufs-weather-model and ufs-2s2-model
• Tests all passed for NCEPLIBS-pyprodutil develop as well as port-2-hera branch

`==> rtreport_s2s_pyprodutil_develop <==
mediator_scalars_restart.txt: bit-for-bit identical
Executable did not change during test suite:
File: /scratch1/NCEPDEV/stmp2/Minsuk.Ji/scrub/rtgen.160250/exec/fv3_mom6_cice.exe
Expected md5sum: 842057354cfcc56a0fb69d189fb87d47
Actual md5sum: 842057354cfcc56a0fb69d189fb87d47
TEST PASSED AT Mon Mar 16 18:55:33 UTC 2020
WORKFLOW REPORT AT Mon Mar 16 19:37:39 2020 ([phone])
Tests: 0 failed, 8 passed out of 8
Builds: 0 failed, 1 passed out of 1
REGRESSION TEST WAS SUCCESSFUL

==> rtreport_s2s_pyprodutil_port-2-hera <==
mediator_scalars_restart.txt: bit-for-bit identical
Executable did not change during test suite:
File: /scratch1/NCEPDEV/stmp2/Minsuk.Ji/scrub/rtgen.22631/exec/fv3_mom6_cice.exe
Expected md5sum: 842057354cfcc56a0fb69d189fb87d47
Actual md5sum: 842057354cfcc56a0fb69d189fb87d47
TEST PASSED AT Tue Mar 17 13:36:29 UTC 2020
WORKFLOW REPORT AT Tue Mar 17 14:19:59 2020 ([phone])
Tests: 0 failed, 8 passed out of 8
Builds: 0 failed, 1 passed out of 1
REGRESSION TEST WAS SUCCESSFUL

==> rtreport_weather_pyprodutil_develop <==
RESTART/sfc_data.tile6.nc: bit-for-bit identical
Executable did not change during test suite:
File: ./fv3.exe
Expected md5sum: 8fabf1e623c3c2a47eb03e756792df08
Actual md5sum: 8fabf1e623c3c2a47eb03e756792df08
TEST PASSED AT Mon Mar 16 17:15:40 UTC 2020
WORKFLOW REPORT AT Mon Mar 16 17:46:41 2020 ([phone])
Tests: 0 failed, 37 passed out of 37
Builds: 0 failed, 5 passed out of 5
REGRESSION TEST WAS SUCCESSFUL

==> rtreport_weather_pyprodutil_port-2-hera <==
RESTART/sfc_data.tile6.nc: bit-for-bit identical
Executable did not change during test suite:
File: ./fv3.exe
Expected md5sum: edc6731e98572213b5ad56b4834daa06
Actual md5sum: edc6731e98572213b5ad56b4834daa06
TEST PASSED AT Tue Mar 17 15:16:40 UTC 2020
WORKFLOW REPORT AT Tue Mar 17 15:49:29 2020 ([phone])
Tests: 0 failed, 37 passed out of 37
Builds: 0 failed, 5 passed out of 5
REGRESSION TEST WAS SUCCESSFUL
`

• I think we can do one of the following:

1. Make NEMS point to NCEPLIBS-pyprodutil develop branch
2. Merge port-2-hera branch into develop; point NEMS to develop (NOAA-EMC/NCEPLIBS-pyprodutil@962cbd5)
3. Remove Theia in port-2-hera; merge port-2-hera into develop; point NEMS to develop