SPIGOT-4705: Revamp Ageable interface and add Breedable interface

By: Shane Bee <shanebolenback@me.com>

paper-api/src/main/java/org/bukkit/entity/Zoglin.java

@@ -3,19 +3,23 @@ package org.bukkit.entity;
 /**
  * Represents a Zoglin.
  */
-public interface Zoglin extends Monster {
+public interface Zoglin extends Monster, Ageable {
 
     /**
      * Gets whether the zoglin is a baby
      *
      * @return Whether the zoglin is a baby
+     * @deprecated see {@link Ageable#isAdult()}
      */
+    @Deprecated
     public boolean isBaby();
 
     /**
      * Sets whether the zoglin is a baby
      *
      * @param flag Whether the zoglin is a baby
+     * @deprecated see {@link Ageable#setBaby()} and {@link Ageable#setAdult()}
      */
+    @Deprecated
     public void setBaby(boolean flag);
 }