Added Cancellable interface

By: durron597 <martin.jared@gmail.com>

paper-api/src/org/bukkit/event/block/BlockPlacedEvent.java

@@ -1,19 +1,32 @@
 package org.bukkit.event.block;
 
 import org.bukkit.Block;
+import org.bukkit.event.Cancellable;
 
 /**
  * Not implemented yet
  */
-public class BlockPlacedEvent extends BlockEvent {
-
+public class BlockPlacedEvent extends BlockEvent implements Cancellable {
+	private boolean cancel;
+	
 	/**
 	 * @param type
 	 * @param theBlock
 	 */
 	public BlockPlacedEvent(Type type, Block theBlock) {
 		super(type, theBlock);
-		// TODO Auto-generated constructor stub
+		cancel = false;
+	}
+
+	@Override
+	public boolean isCancelled() {
+		// TODO Auto-generated method stub
+		return cancel;
+	}
+
+	@Override
+	public void setCancelled(boolean cancel) {
+		this.cancel = cancel;
 	}
 
 }