ps: Support more fields + some tiny fixes to them #1745

Job	Run time
cargo check (ubuntu-latest)	53s
cargo test (windows-latest)	2m 54s
Test each util separately (ubuntu-latest)	1m 6s
cargo check (macOS-latest)	36s
Test each util separately (windows-latest)	3m 29s
cargo test (ubuntu-latest)	1m 4s
Code Coverage (macos-latest, macos)	2m 13s
cargo check (windows-latest)	2m 34s
Test each util separately (macOS-latest)	1m 7s
Code Coverage (windows-latest, windows)	4m 46s
cargo test (macOS-latest)	54s
Code Coverage (ubuntu-latest, unix)	2m 15s
	23m 51s

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