feat(core)!: implement write returns metadata #2417

Job	Run time
build_all_features	4m 55s
build_default_features (ubuntu-latest)	54s
build_all_platforms (ubuntu-latest)	2m 26s
build_under_wasm	45s
build_default_features (macos-latest)	42s
build_default_features (windows-latest)	2m 19s
build_all_platforms (macos-latest)	2m 26s
check_clippy	3m 45s
build_all_platforms (windows-latest)	5m 54s
check_docs	3m 33s
check_msrv	33s
unit	6m 36s
	34m 48s

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