Add more numerical weather datasets (NWPs) to hypergrib

[JackKelly]

In priority order.

Dataset	Format	Notes	Done?
GEFS	GRIB2	GEFS will be the first NWP that hypergrib will support	in progress
ECMWF	GRIB2	GCS bucket & ECMWF's Open Data Roadmap. Includes IFS & AIFS. Index files are JSON .index files, not .idx. IFS and IFS ENS are 3-hourly. AIFS is 6-hourly.
UK MetOffice	NetCDF	2-year rolling archive of 2 of their NWPs on Amazon Sustainability Data Initiative (ASDI)
DWD ICON	GRIB2 gzipped	DWD only store the last 24 hours of forecasts. Open Climate Fix archives zipped Zarrs of ICON-Global and ICON EU on HuggingFace.
HRRR	GRIB (v2?)
GFS	NetCDF	example

Please shout if you have suggestions for other NWPs!

[jacobbieker]

Potentially, GEFS? As that would give an ensemble forecast as well, although I did just see dynamical.org might be releasing a Zarr catalog of it. MeteoFrance has now more public data as well for their global and local forecast models.

[JackKelly]

Hehe, don't worry, GEFS is the first dataset that I'm implementing support for! (sorry, I should've made that clear in this thread). I've just added GEFS to the list at the top of this thread.