[enhancement] History can persist between runs

[InnovativeInventor]

node-kayles/src/main.rs

Lines 207 to 208 in 6cca4ec

	let mut history: HashMap<u64, usize, U64Hasher> =
	HashMap::with_capacity_and_hasher(50000000, U64Hasher::new());

This should be moved out and put in the main function and passed to the run function, so states are not recalculated unnecessarily.