SPIGOT-1345: Add BITE state to PlayerFishEvent.

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

paper-api/src/main/java/org/bukkit/event/player/PlayerFishEvent.java

@@ -134,5 +134,9 @@ public class PlayerFishEvent extends PlayerEvent implements Cancellable {
          * poor aiming or timing
          */
         FAILED_ATTEMPT,
+        /**
+         * Called when there is a bite on the hook and it is ready to be reeled in.
+         */
+        BITE
     }
 }