examples/codec_mode_histogram: measure shipped hpc::codec mode split + rate-distortion curve #592

Job	Run time
tier4-avx512-check	36s
nostd/thumbv6m-none-eabi/stable	33s
Pass MSRV values to other jobs	4s
native-backend/stable	8m 49s
clippy/1.95.0	44s
hpc-stream-parallel/rayon	1m 27s
format/stable	21s
miri	0s
cross_test/${{ matrix.target }}/${{ matrix.rust }}	0s
docs/nightly	0s
nightly-simd-polyfill	0s
tests/beta	11m 6s
blas-msrv	43s
tests/1.95.0	10m 51s
tests/stable	11m 45s
cargo-careful	-7s
conclusion	-1s
	46m 51s

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