feat: add HEIC/HEIF decoding and encoding support - #119
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- Decode via imgio.Open and encode via imgio.HEICEncoder, backed by the pure Go github.com/gen2brain/h265 codec. The heic package registers itself with image.RegisterFormat, so image.Decode picks up .heic/.heif transparently, and the CLI resolves both extensions to the new encoder. - HEICEncoder takes *heic.EncodeOptions, mirroring WEBPEncoder, so lossless and chroma/bit-depth settings stay reachable; nil gives lossy 4:2:0 at 8 bits. - The codec adds no transitive dependencies, but its go directive raises the minimum toolchain to 1.26.4. go.mod, the README and the CI matrix move to 1.26 accordingly, which is a breaking change for users on 1.25.
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Decode via imgio.Open and encode via imgio.HEICEncoder, backed by the pure Go github.com/gen2brain/h265 codec. The heic package registers itself with image.RegisterFormat, so image.Decode picks up .heic/.heif transparently, and the CLI resolves both extensions to the new encoder.
HEICEncoder takes *heic.EncodeOptions, mirroring WEBPEncoder, so lossless and chroma/bit-depth settings stay reachable; nil gives lossy 4:2:0 at 8 bits.
The codec adds no transitive dependencies, but its go directive raises the minimum toolchain to 1.26.4. go.mod, the README and the CI matrix move to 1.26 accordingly, which is a breaking change for users on 1.25.