Add capability to use HRRR IC/LBCs from AWS

[jaredalee]

Describe the New Feature

As a complement to #18, create an alternate script to download HRRR ICs/LBCs from AWS instead, to allow flexibility in case one repository or the other is temporarily unavailable for some reason. It probably makes the most sense to do this after #18 is done, as both will require some work on other scripts to enable calling a new download_hrrr_from_aws.py script. @juhyejuhye has existing Python code to do this that should be straightforward to adapt, adding in logging similar to what's done in the other scripts in this repo.

Acceptance Testing

Verify the workflow executes successfully from the get_icbc step, through do_ungrib, do_metgrid, and do_real steps.

Time Estimate

1 day.

Relevant Deadlines

28 Feb 2025

New Parameters

None

Technical References

None

Funding Source

Multiscale Workflow project

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