Add all elements to Element enum

[seatonullberg]

The Element enum currently supports only a minimal set of elements used in testing. All the naturally occurring elements from Hydrogen through Uranium should be implemented. The following snippet shows the existing implementation:

velvet/crates/velvet-core/src/system/elements.rs

Lines 5 to 83 in e4b3c46

	/// Every element on the periodic table.
	#[derive(Clone, Copy, Debug, PartialEq, EnumString, Hash, Eq)]
	pub enum Element {
	/// Hydrogen
	H,
	/// Helium
	He,
	/// Boron
	B,
	/// Nitrogen
	N,
	/// Oxygen
	O,
	/// Fluorine
	F,
	/// Sodium
	Na,
	/// Magnesium
	Mg,
	/// Chlorine
	Cl,
	/// Argon
	Ar,
	/// Xenon
	Xe,
	}
	impl Element {
	/// Returns the atomic mass of the element in amu.
	pub const fn mass(&self) -> Float {
	match self {
	Element::H => 1.008,
	Element::He => 4.0026,
	Element::B => 10.811,
	Element::N => 14.0067,
	Element::O => 15.999,
	Element::F => 18.998,
	Element::Na => 22.989,
	Element::Mg => 24.305,
	Element::Cl => 35.453,
	Element::Ar => 39.948,
	Element::Xe => 131.293,
	}
	}
	/// Returns the electronic charge of the element as a multiple of electron charge.
	pub const fn charge(&self) -> Float {
	match self {
	Element::H => 1.0,
	Element::He => 0.0,
	Element::B => 3.0,
	Element::N => -3.0,
	Element::O => -2.0,
	Element::F => -1.0,
	Element::Na => 1.0,
	Element::Mg => 2.0,
	Element::Cl => -1.0,
	Element::Ar => 0.0,
	Element::Xe => 0.0,
	}
	}
	/// Returns the atomic number of the element.
	pub const fn number(&self) -> u8 {
	match self {
	Element::H => 1,
	Element::He => 2,
	Element::B => 5,
	Element::N => 7,
	Element::O => 8,
	Element::F => 9,
	Element::Na => 11,
	Element::Mg => 12,
	Element::Cl => 17,
	Element::Ar => 18,
	Element::Xe => 54,
	}
	}
	}