Merge pull request #444 from EasyEngine/feat/backup-restore

Add site backup/restore functionality

Author: mrrobot47

composer.json

@@ -22,6 +22,7 @@
             "src/helper/SimpleDnsCloudflareSolver.php",
             "src/helper/Site_Self_Signed.php",
             "src/helper/Site_Letsencrypt.php",
+            "src/helper/Site_Backup_Restore.php",
             "src/helper/Shutdown_Handler.php",
             "src/clone/Cloner.php",
             "src/clone/clone-utils.php"