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/Block.php

@@ -402,11 +402,13 @@ class Block extends Position implements BlockIds, Metadatable{
 	 * Do actions when activated by Item. Returns if it has done anything
 	 *
 	 * @param Item        $item
+	 * @param int         $face
+	 * @param Vector3     $clickVector
 	 * @param Player|null $player
 	 *
 	 * @return bool
 	 */
-	public function onActivate(Item $item, Player $player = null) : bool{
+	public function onActivate(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		return false;
 	}