[Bleeding] Add ExpBottleEvent; Addresses BUKKIT-888

By: Wesley Wolfe <weswolf@aol.com>

paper-api/src/main/java/org/bukkit/event/entity/ExpBottleEvent.java

@@ -0,0 +1,69 @@
+package org.bukkit.event.entity;
+
+import org.bukkit.entity.ThrownExpBottle;
+import org.bukkit.event.HandlerList;
+
+/**
+ * Called when a ThrownExpBottle hits and releases experience.
+ */
+public class ExpBottleEvent extends ProjectileHitEvent {
+    private static final HandlerList handlers = new HandlerList();
+    private int exp;
+    private boolean showEffect = true;
+
+    public ExpBottleEvent(final ThrownExpBottle bottle, final int exp) {
+        super(bottle);
+        this.exp = exp;
+    }
+
+    @Override
+    public ThrownExpBottle getEntity() {
+        return (ThrownExpBottle) entity;
+    }
+
+    /**
+     * This method indicates if the particle effect should be shown.
+     * @return true if the effect will be shown, false otherwise
+     */
+    public boolean getShowEffect() {
+        return this.showEffect;
+    }
+
+    /**
+     * This method sets if the particle effect will be shown.
+     * This does not change the experience created.
+     * @param showEffect
+     *          true indicates the effect will be shown,
+     *          false indicates no effect will be shown
+     */
+    public void setShowEffect(final boolean showEffect) {
+        this.showEffect = showEffect;
+    }
+
+    /**
+     * This method retrieves the amount of experience to be created.
+     * The number indicates a total amount to be divided into orbs.
+     * @return the total amount of experience to be created
+     */
+    public int getExperience() {
+        return exp;
+    }
+
+    /**
+     * This method sets the amount of experience to be created.
+     * The number indicates a total amount to be divided into orbs.
+     * @param exp the total amount of experience to be created
+     */
+    public void setExperience(final int exp) {
+        this.exp = exp;
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+}