Updates to deal with missing daily CPC gauge data

[HelinWei-NOAA]

This is part of the global-workflow issue #2503 Kate opened to address the failure of gldas in the ops GFS due to the missing of daily CPC gauge data

[HelinWei-NOAA]

Made the changes following the instructions provided by Kate:

Since the GFSv16 still sources the GLDAS scripts from the GLDAS repo, but we removed the scripts last year as part of absorbing scripts into global-workflow develop, we'll need to make a branch in GLDAS from the hash that is in operations now and before the last set of commits. Please do the following:
Create a "production" branch off of the hash that is in ops now: https://github.com/NOAA-EMC/GLDAS/tree/fd8ba62275bb27b0beecbc7c6985c1d61537f299)
Check out the GLDAS master branch at that hash:

git checkout https://github.com/NOAA-EMC/GLDAS.git ./master
cd master
git checkout fd8ba62
Create a new branch from that hash with your clone:
git checkout -b production/gfs.v16
Push that new branch up to the auth repo:
git push origin production/gfs.v16
Now that we've saved the production version...create a new release branch for the requested updates from that new production branch. You can do that via the "New branch" button in GitHub or follow these steps:
git checkout -b production/gfs.v16 https://github.com/NOAA-EMC/GLDAS.git ./production-gfs.v16
cd production-gfs.v16
git checkout -b release/gfs.v16.3_gldas
git push origin release/gfs.v16.3_gldas
Then we can make the requested changes to the release/gfs.v16.3_gldas branch for items #1 and #2

[HelinWei-NOAA]

Completed the change and created the tag