geomorphR 0.2.0

New functionality

• Add compare_footprints() to compare polygon footprints across two vector files, including named GeoPackage layers, optional boundary clipping, coordinate reference system transformation, and new-construction and demolition classifications.
• Include small, synthetic GeoPackage and Shapefile examples with a boundary, plus a runnable threshold-sensitivity example script.

Other changes

• Expand the package README and DESCRIPTION to cover footprint comparison.