`lscpu`: Read CPU information from `sysfs` #804

Job	Run time
cargo fmt --all -- --check	7s
Code Coverage (ubuntu-latest, unix)	1m 50s
cargo clippy -- -D warnings (ubuntu-latest)	18s
cargo check (ubuntu-latest)	23s
Code Coverage (macos-latest, macos)	2m 4s
cargo clippy -- -D warnings (macOS-latest)	33s
cargo test (ubuntu-latest)	30s
cargo check (macOS-latest)	33s
Code Coverage (windows-latest, windows)	4m 48s
cargo clippy -- -D warnings (windows-latest)	2m 39s
cargo test (macOS-latest)	34s
cargo check (windows-latest)	1m 44s
cargo test (windows-latest)	3m 3s
	19m 6s

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