Research and create a way to download ASTER stereo imagery using the earthaccess api

[ShashankBice]

See ICESat-2 hackweek tutorial for details.

[ShashankBice]

For now, it seems that ASTER L1A data can not be accessed programmatically. See related issue here for bookkeeping and future development.

[dshean]

These should be available in EarthData Cloud soon: https://www.earthdata.nasa.gov/news/feature-articles/nasa-begins-final-aster-data-processing-campaign