Add decoding hooks #1665

Job	Run time
Fuzz targets (cargo-fuzz)	49s
Fuzz targets (afl)	1m 58s
build_benchmarks	38s
cargo-deny	18s
cargo-semver-checks	26s
clippy	1m 57s
public_private_dependencies	25s
rustfmt	14s
test_avif_decoding	1m 25s
test_other_archs (powerpc-unknown-linux-gnu)	1m 25s
test_toolchains (1.70.0)	24s
test_features	14s
test_other_archs (i686-unknown-linux-gnu)	1m 2s
test_toolchains (nightly)	24s
test_features (default)	29s
test_toolchains (beta)	31s
test_features (rayon)	16s
test_features (avif)	27s
test_features (bmp)	14s
test_features (dds)	17s
test_features (exr)	19s
test_features (ff)	20s
test_features (gif)	20s
test_features (hdr)	14s
test_features (ico)	15s
test_features (jpeg)	14s
test_features (png)	17s
test_features (pnm)	19s
test_features (qoi)	16s
test_features (tga)	16s
test_features (tiff)	21s
test_features (webp)	15s
	17m 19s

Provide feedback