Add more fuzz tests

[c410-f3r]

rust-decimal/src/maths.rs

Lines 536 to 542 in 1e35a73

	if self >= &Decimal::PI {
	// -Sin(x-π)
	return match (self - Decimal::PI).checked_sin() {
	Some(x) => Some(-x),
	None => None,
	};
	}

#[test]
fn test() {
    use core::str::FromStr;
    let n = crate::Decimal::from_str("-79228162514264.337593543950335").unwrap();
    let _ = n.sin();
}

For some reason the above snippet keeps entering the if self >= &Decimal::PI { branch in an infinite loop overflowing the default stack size.

[paupino]

Great find! I'll merge this then look at isolating the failing test case.