Added Villager API for getting/setting Profession. This adds BUKKIT-887

By: Nathan Adams <dinnerbone@dinnerbone.com>

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

@@ -56,7 +56,7 @@ public interface Ocelot extends Animals, Tameable {
          * @param id ID of the cat type to get.
          * @return Resulting type, or null if not found.
          */
-        public static final Type getType(int id) {
+        public static Type getType(int id) {
             return (id >= types.length) ? null : types[id];
         }
     }

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

@@ -4,5 +4,61 @@ package org.bukkit.entity;
  * Represents a villager NPC
  */
 public interface Villager extends NPC {
+    /**
+     * Gets the current profession of this villager.
+     *
+     * @return Current profession.
+     */
+    public Profession getProfession();
     
+    /**
+     * Sets the new profession of this villager.
+     * 
+     * @param profession New profession.
+     */
+    public void setProfession(Profession profession);
+
+
+    /**
+     * Represents the various different Villager professions there may be.
+     */
+    public enum Profession {
+        FARMER(0),
+        LIBRARIAN(1),
+        PRIEST(2),
+        BLACKSMITH(3),
+        BUTCHER(4);
+
+        private static final Profession[] professions = new Profession[Profession.values().length];
+        private final int id;
+
+        static {
+            for (Profession type : values()) {
+                professions[type.getId()] = type;
+            }
+        }
+
+        private Profession(int id) {
+            this.id = id;
+        }
+
+        /**
+         * Gets the ID of this profession.
+         *
+         * @return Profession ID.
+         */
+        public int getId() {
+            return id;
+        }
+
+        /**
+         * Gets a profession by its ID.
+         *
+         * @param id ID of the profession to get.
+         * @return Resulting profession, or null if not found.
+         */
+        public static Profession getProfession(int id) {
+            return (id >= professions.length) ? null : professions[id];
+        }
+    }
 }