Port the build and gdas_init scripts to S4

[DavidHuber-NOAA]

Support for S4 has been added to the build scripts to support the global workflow. Additionally, a partial driver for gdas_init (chgres only) has been written for S4. The port is supported by an official build of hpc-stack supported by me on the system. I have run several test cycles, the logs of which are available on Orion (/work/noaa/nesdis-rdo2/dhuber/s4_logs/test_dev). I've also run a test case of gdas_init for 2019111818 @192/96, comparing the resulting outputs from S4 and Hera, which were bitwise identical. Please let me know if you need any further tests completed.

Fixes #543

[GeorgeGayno-NOAA]

@DavidHuber-NOAA I will look at your log files on Orion. Unfortunately, I don't have access to S4. I will also test your branch on Orion, Jet, Hera, WCOSS-cray and WCOSS-dell to ensure your changes do not affect those machines. After a quick look at what your changes, I don't expect problems.

[GeorgeGayno-NOAA]

@DavidHuber-NOAA Can you open up the unix permissions on the sub-directories in /work/noaa/nesdis-rdo2/dhuber

[DavidHuber-NOAA]

@GeorgeGayno-NOAA Done.

[GeorgeGayno-NOAA]

@GeorgeGayno-NOAA Done.

Thanks. I looked at the log files from one cycle. The global_cycle steps ran without any error. That is the only ufs_utils program run by the global workflow.

[GeorgeGayno-NOAA]

@DavidHuber-NOAA Thanks for testing the gdas_init utility. Bit identical results is a good thing.

[GeorgeGayno-NOAA]

The branch at c707758 was successfully compiled on all Tier 1 machines - Orion, Jet, Hera, WCOSS-Cray and WCOSS-Dell. And all consistency tests passed.

[GeorgeGayno-NOAA]

@DavidHuber-NOAA We will accept this PR and future S4-related updates. But since S4 is not an official Tier 1 machine, we can't test all future changes to ensure they won't break S4. Just a heads up.

[DavidHuber-NOAA]

@GeorgeGayno-NOAA Understood, thank you for the heads up.

[GeorgeGayno-NOAA]

Looks fine.

[GeorgeGayno-NOAA]

@KateFriedman-NOAA FYI.

[KateFriedman-NOAA]

@KateFriedman-NOAA FYI.

Thanks @GeorgeGayno-NOAA and @DavidHuber-NOAA !