Add Override annotations where appropriate

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/material/CocoaPlant.java

@@ -75,10 +75,12 @@ public class CocoaPlant extends MaterialData implements Directional, Attachable
         setData((byte) dat);
     }
 
+    @Override
     public BlockFace getAttachedFace() {
         return getFacing().getOppositeFace();
     }
 
+    @Override
     public void setFacingDirection(BlockFace face) {
         int dat = getData() & 0xC;
         switch (face) {
@@ -98,6 +100,7 @@ public class CocoaPlant extends MaterialData implements Directional, Attachable
         setData((byte) dat);
     }
 
+    @Override
     public BlockFace getFacing() {
         switch (getData() & 0x3) {
             case 0: