增加打包服务接口类

src/PackageServiceInterface.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Yxy\Service;
+
+interface PackageServiceInterface
+{
+    /**
+     * @param string $source_file
+     * @param string $save_file
+     * @param array $param
+     */
+    public function createPack(string $source_file, string $save_file, array $param = []);
+}