feat: demo mode for testing AIs

src/random_ai.rs

@@ -0,0 +1,11 @@
+use rand::Rng;
+use crate::types::{Client, Color};
+
+pub fn random_move(board: &[Vec<Color>]) -> usize {
+	let mut random = rand::rng().random_range(0..6);
+	while board[random][4] != Color::None {
+		random = rand::rng().random_range(0..6);
+	}
+
+	random
+}