Add basic support for squashfs #207

Job	Run time
clippy-checks	1m 10s
rustfmt-nightly-check	11s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, x86_64-unknown-linux-gnu)	2m 23s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, x86_64-pc-windows-gnu)	5m 39s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, aarch64-pc-windows-msvc)	1m 6s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, x86_64-apple-darwin)	3m 11s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, aarch64-unknown-linux-gnu)	7m 17s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, x86_64-unknown-linux-musl)	2m 49s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, aarch64-unknown-linux-musl)	6m 16s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, x86_64-pc-windows-msvc)	4m 51s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, armv7-unknown-linux-musleabihf)	7m 6s
build-and-test / build-artifacts-and-run-tests (true, x86_64-unknown-linux-gnu)	1m 48s
build-and-test / build-artifacts-and-run-tests (false, x86_64-unknown-linux-gnu)	1m 51s
build-and-test / build-artifacts-and-run-tests (true, true, false, false, armv7-unknown-linux-gnueabihf)	7m 18s
build-and-test / build-artifacts-and-run-tests (true, x86_64-unknown-linux-gnu)	1m 52s
build-and-test / build-artifacts-and-run-tests (false, x86_64-unknown-linux-gnu)	1m 49s
	56m 37s

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