dem-stitcher v2.5.0

Added

• The function get_dem_tile_paths to extract urls or local paths to dem tiles specifying bounds and dem names.
• Notebook illustrating how to create a vrt file using get_dem_tile_paths.
• Utilizes get_dem_tile_paths in main stitch_dem for easier testing.
• Caches dem tile extents loaded from compressed geojson.

Removed

• driver keyword in stitch_dem.