Method forEach

src/main/java/fieldbox/boxes/Box.java:246–250

vastly less garbage-y

(Consumer<Box> b)

	/**
	 * vastly less garbage-y
	 */
	@HiddenInAutocomplete
	public void forEach(Consumer<Box> b) {
		LinkedHashSet<Box> visited = new LinkedHashSet<>();
		_forEach(this, b, visited);
	}