Leonid E

add support for `lhv1` image items (layered HEVC)

3

Hi, `heif-info` utility output: 1.17.6: ``` MIME type: image/heic main brand: heis compatible brands: mif1, heis, avci Could not read HEIF/AVIF file: Invalid input: Non-existing item ID referenced: 'pitm' box...