Add API to send game events (#6444)

patches/api/More-World-API.patch

@@ -109,6 +109,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     */
 +    @NotNull
 +    Collection<Material> getInfiniburn();
++
++    /**
++     * Posts a specified game event at a location
++     *
++     * @param sourceEntity optional source entity
++     * @param gameEvent the game event to post
++     * @param position the position in the world where to post the event to listeners
++     */
++    void sendGameEvent(@Nullable Entity sourceEntity, @NotNull GameEvent gameEvent, @NotNull Vector position);
 +    // Paper end
 +
      // Spigot start