Player: remove dataPacket() and directDataPacket()

I considered renaming sendDataPacket() to dataPacket() to reduce the BC breaks, but the parameter set has changed, which might cause astonishing behaviour, so it's better to break it in a loud way. Also, this has a clearer name.

src/pocketmine/inventory/ArmorInventory.php

@@ -108,7 +108,7 @@ class ArmorInventory extends BaseInventory{
 				$pk2->windowId = $player->getWindowId($this);
 				$pk2->inventorySlot = $index;
 				$pk2->item = $this->getItem($index);
-				$player->dataPacket($pk2);
+				$player->sendDataPacket($pk2);
 			}else{
 				$player->dataPacket($pk);
 			}

src/pocketmine/inventory/BaseInventory.php

@@ -443,7 +443,7 @@ abstract class BaseInventory implements Inventory{
 				continue;
 			}
 			$pk->windowId = $id;
-			$player->dataPacket($pk);
+			$player->sendDataPacket($pk);
 		}
 	}
 
@@ -466,7 +466,7 @@ abstract class BaseInventory implements Inventory{
 				continue;
 			}
 			$pk->windowId = $id;
-			$player->dataPacket($pk);
+			$player->sendDataPacket($pk);
 		}
 	}
 

src/pocketmine/inventory/ContainerInventory.php

@@ -56,7 +56,7 @@ abstract class ContainerInventory extends BaseInventory{
 			$pk->z = $holder->getFloorZ();
 		}
 
-		$who->dataPacket($pk);
+		$who->sendDataPacket($pk);
 
 		$this->sendContents($who);
 	}
@@ -64,7 +64,7 @@ abstract class ContainerInventory extends BaseInventory{
 	public function onClose(Player $who) : void{
 		$pk = new ContainerClosePacket();
 		$pk->windowId = $who->getWindowId($this);
-		$who->dataPacket($pk);
+		$who->sendDataPacket($pk);
 		parent::onClose($who);
 	}
 

src/pocketmine/inventory/PlayerInventory.php

@@ -144,7 +144,7 @@ class PlayerInventory extends BaseInventory{
 		$pk->windowId = ContainerIds::INVENTORY;
 
 		if(!is_array($target)){
-			$target->dataPacket($pk);
+			$target->sendDataPacket($pk);
 			if($target === $this->getHolder()){
 				$this->sendSlot($this->getHeldItemIndex(), $target);
 			}
@@ -174,7 +174,7 @@ class PlayerInventory extends BaseInventory{
 			}
 		}
 
-		$this->getHolder()->dataPacket($pk);
+		$this->getHolder()->sendDataPacket($pk);
 	}
 
 	/**

src/pocketmine/inventory/transaction/CraftingTransaction.php

@@ -149,7 +149,7 @@ class CraftingTransaction extends InventoryTransaction{
 		 */
 		$pk = new ContainerClosePacket();
 		$pk->windowId = ContainerIds::NONE;
-		$this->source->dataPacket($pk);
+		$this->source->sendDataPacket($pk);
 	}
 
 	public function execute() : bool{