Works better in S3. Reading works the same:

    gpd.read_file("/path/to/folder", layer=somelayer)
    # This will read /path/to/folder/layer.fgb

Otherwise, it tries to use NetCDF.

Seems to work more reliably with S3. GDAL.open fails with newer (??)
versions of GDAL on MAAP, but works with older (???) versions of GDAL.

This version works with S3 paths as well.

- Replace `open` with `fsspec.open` to be robust to S3 paths.
- Make directory-checking code ignore S3 paths (which don't have
  directories).

Custom version tries several times. This is necessary because of a weird
edge case reading from S3 buckets -- Geopandas fails immediately the
first time, but succeeds almost immediately the second time.

main changes are to FireMain.py to set the dates and locations which run, as well as FireIO--which has the original col names that should work by default with the monthly snpp data from the fuoco site. this is not yet tested.