refactor!: move the `zarrs::array::{data_type,fill_value}` modules into the `zarrs_data_type` crate #943

Job	Run time
build_and_test (stable, --features "")	1m 29s
build_and_test (stable, --all-features)	1m 58s
clippy	48s
build_and_test (stable, --no-default-features)	1m 12s
build_and_test_macos (macos-13)	1m 58s
build_and_test_windows	5m 58s
build_and_test (1.82, --features "")	1m 37s
build_and_test_macos (macos-latest)	1m 10s
build_and_test (1.82, --all-features)	2m 18s
fmt	1m 37s
build_and_test (1.82, --no-default-features)	1m 30s
minimal-versions	48s
semver	1m 58s
build_and_test (beta, --features "")	1m 28s
build_and_test (beta, --all-features)	1m 56s
codecov	1m 44s
build_and_test (beta, --no-default-features)	1m 14s
build_and_test (nightly, --features "")	1m 9s
build_and_test (nightly, --all-features)	1m 31s
build_and_test (nightly, --no-default-features)	2m 0s
	35m 23s

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