- Rename Png type to LisPng
- Replace function prefix lis_Png_ to LisPng_
- Expose LisPngColourType enum
- Add LisPngColourType_sample_count() function
- Add LisPng accessor functions
- Add LisPng_write_RGBA8_data()
- Add support for colour type Indexed-colour
- Improve lisiblepng-bin error handling
- Fix a bug when reallocating image data
- Replace log and assert modules with lisiblestd's
- Add PNG decoding support for colour types Greyscale and Truecolour