Block: add face and clickVector to onActivate() parameters, closes #267

this is an old old old issue, i don't know why it wasn't addressed sooner.

src/pocketmine/block/Cake.php

@@ -96,7 +96,7 @@ class Cake extends Transparent implements FoodSource{
 		return false;
 	}
 
-	public function onActivate(Item $item, Player $player = null) : bool{
+	public function onActivate(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
 			$player->consumeObject($this);
 			return true;