added smarty library as an example

composer.json

 {
     "name": "vtigercrm",
     "require": {
-        
+        "smarty/smarty": "3.1.29"
     }
 }

includes/runtime/Viewer.php

@@ -8,7 +8,7 @@
  * All Rights Reserved.
  ************************************************************************************/
 
-vimport ('~/libraries/Smarty/libs/SmartyBC.class.php');
+vimport ('~/vendor/smarty/smarty/libs/SmartyBC.class.php');
 
 class Vtiger_Viewer extends SmartyBC {