Feature request: read Landsat products into SpatRaster object

[aloboa]

As far as I can find, there is currently no way to import Landsat products
into terra objects using the metadata file (see bleutner/RStoolbox#122).
I think that this is a major shortcoming for many potential users of terra.
I suggest a function to read the whole product and optionally write a vrt file.
I can provide an example tar file if needed.
(Copernicus products seem to be be well served by package https://zivankaraman.github.io/CDSE/ but I have not direct experience with it).

[kadyb]

Both Sentinel-1 and Sentinel-2 products are directly supported by GDAL. Maybe the Landsat driver should be there too?

1. https://gdal.org/en/stable/drivers/raster/safe.html
2. https://gdal.org/en/stable/drivers/raster/sentinel2.html