#1082: Add "since" to Deprecation annotations

By: DerFrZocker <derrieple@gmail.com>

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

@@ -9,7 +9,7 @@ import org.bukkit.block.BlockFace;
  * @deprecated all usage of MaterialData is deprecated and subject to removal.
  * Use {@link org.bukkit.block.data.BlockData}.
  */
-@Deprecated
+@Deprecated(since = "1.14.1")
 public class Skull extends MaterialData implements Directional {
     public Skull() {
         super(Material.LEGACY_SKULL);
@@ -34,7 +34,7 @@ public class Skull extends MaterialData implements Directional {
      * @param data the raw data value
      * @deprecated Magic value
      */
-    @Deprecated
+    @Deprecated(since = "1.6.2")
     public Skull(final Material type, final byte data) {
         super(type, data);
     }