Function hsl_round

crates/chromashift/src/round.rs:120–123

()

	#[test]
	fn hsl_round() {
		let rounded = Hsl::new(218.54015, 79.19075, 66.07843, 100.0).round();
		assert_eq!(rounded, Hsl::new(218.5, 79.2, 66.1, 100.0));
	}

	#[test]
	fn display_p3_round() {