SPIGOT-5782: Set Arrow Launched From Crossbow

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

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

@@ -110,6 +110,20 @@ public interface AbstractArrow extends Projectile {
      */
     public void setPickupStatus(@NotNull PickupStatus status);
 
+    /**
+     * Gets if this arrow was shot from a crossbow.
+     *
+     * @return if shot from a crossbow
+     */
+    public boolean isShotFromCrossbow();
+
+    /**
+     * Sets if this arrow was shot from a crossbow.
+     *
+     * @param shotFromCrossbow if shot from a crossbow
+     */
+    public void setShotFromCrossbow(boolean shotFromCrossbow);
+
     /**
      * Represents the pickup status of this arrow.
      */