Resolution order is the gdalraster.windows.gdal_home option, the
GDALRASTER_WINDOWS_GDAL_HOME environment variable, then the package-managed
user data directory. The returned path is normalized to forward slashes.
Resolution order is the gdalraster.windows.gdal_home option, the
GDALRASTER_WINDOWS_GDAL_HOME environment variable, then the package-managed
user data directory. The returned path is normalized to forward slashes.