nydusify: introduce chunkdict generate subcommand #2271

Job	Run time
nydus-build	1m 36s
contrib-build	2m 21s
contrib-build-master	2m 36s
nydusd-build-macos (amd64)	3m 34s
nydus-build-master	1m 33s
nydusd-build-macos (arm64)	3m 28s
cargo-deny	6m 1s
nydus-unit-test	4m 0s
nydus-unit-test-coverage	9m 39s
nydus-integration-test	6m 25s
benchmark-nydus-no-prefetch	28s
benchmark-nydus-filelist-prefetch	2m 52s
benchmark-oci	1m 0s
benchmark-nydus-all-prefetch	45s
benchmark-zran-all-prefetch	1m 8s
benchmark-zran-no-prefetch	46s
benchmark-nydus-all-prefetch-master	42s
benchmark-nydus-no-prefetch-master	29s
benchmark-nydus-filelist-prefetch-master	2m 53s
benchmark-zran-all-prefetch-master	1m 3s
benchmark-zran-no-prefetch-master	46s
benchmark-result	0s
benchmark-compare	20s
	54m 25s

Provide feedback