Changelog for ppad-base16-0.2.0

# Changelog - 0.2.0 (2025-03-10) * Fix bug in which inputs with uppercase hex characters failed to decode. - 0.1.1 (2025-02-28) * Roughly 2x faster decoding performance. - 0.1.0 (2025-01-17) * Initial release, supporting basic encoding/decoding.