World: add notifyNeighbourBlockUpdate() to allow triggering neighbour block updates on blocks manually

this can be useful if blocks were modified asynchronously.

src/world/World.php

@@ -1164,6 +1164,17 @@ class World implements ChunkManager{
 		}
 	}
 
+	/**
+	 * Notify the blocks at and around the position that the block at the position may have changed.
+	 * This will cause onNeighbourBlockUpdate() to be called for these blocks.
+	 */
+	public function notifyNeighbourBlockUpdate(Vector3 $pos) : void{
+		$this->tryAddToNeighbourUpdateQueue($pos);
+		foreach($pos->sides() as $side){
+			$this->tryAddToNeighbourUpdateQueue($side);
+		}
+	}
+
 	/**
 	 * @return Block[]
 	 */