[Bleeding] Added Sheep, Shear and EntityChangeBlock API. Thanks tips48! Closes BUKKIT-512

By: Aidan Matzko <amatzko48@gmail.com>

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

@@ -0,0 +1,49 @@
+package org.bukkit.event.player;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+
+@SuppressWarnings("serial")
+/**
+ * Called when a player shears an entity
+ */
+public class PlayerShearEntityEvent extends PlayerEvent implements Cancellable {
+    private static final HandlerList handlers = new HandlerList();
+    private boolean cancel;
+    private Entity what;
+
+    public PlayerShearEntityEvent(Player who, Entity what) {
+        super(Type.PLAYER_SHEAR_ENTITY, who);
+        this.cancel = false;
+        this.what = what;
+    }
+
+    public boolean isCancelled() {
+        return cancel;
+    }
+
+    public void setCancelled(boolean cancel) {
+        this.cancel = cancel;
+    }
+
+    /**
+     * Gets the entity the player is shearing
+     *
+     * @return the entity the player is shearing
+     */
+    public Entity getEntity() {
+        return what;
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+
+}