`lscpu`: Read CPU information from `sysfs` #786

Job	Run time
cargo check (ubuntu-latest)	20s
cargo fmt --all -- --check	4s
cargo check (macOS-latest)	40s
cargo clippy -- -D warnings (ubuntu-latest)	25s
Code Coverage (ubuntu-latest, unix)	1m 58s
cargo check (windows-latest)	2m 29s
cargo clippy -- -D warnings (macOS-latest)	27s
cargo test (ubuntu-latest)	32s
Code Coverage (macos-latest, macos)	1m 59s
cargo clippy -- -D warnings (windows-latest)	2m 29s
cargo test (macOS-latest)	48s
Code Coverage (windows-latest, windows)	4m 37s
cargo test (windows-latest)	3m 2s
	19m 50s

Provide feedback