Further reduce impact of tick time calculations

[ProdPreva1l]

This reduces allocation count 3x (from 3n -> n, where n is total tick times)

Ive done some decent testing and havent observed any difference in the result of the method.

This is allocations (bytes) per second.

Before

After

Tested with

public final class Erm extends JavaPlugin {
    private int tickCount = 0;

    @Override
    public void onEnable() {
        new BukkitRunnable() {
            @Override
            public void run() {
                boolean lagging = Bukkit.getTPS()[0] < 18;

                if (++tickCount % 20 == 0 && lagging) {
                    getLogger().info("Server has less than 18 TPS.");
                }
            }
        }.runTaskTimer(this, 1L, 1L);
    }
}

[jpenilla]

Changes to Moonrise files need to be done in that repo first https://github.com/Tuinity/Moonrise