Added full tile entity data support for all block types that use it, including chests, dispensers, furnaces, mob spawners, and note blocks.

src/main/java/org/bukkit/block/Chest.java

@@ -0,0 +1,9 @@
+package org.bukkit.block;
+
+/**
+ * Represents a chest.
+ * 
+ * @author sk89q
+ */
+public interface Chest extends BlockState, ContainerBlock {
+}