added keeplive in mustache

Author: monu-kumar-visa

generator/cybersource-php-template/configuration.mustache

@@ -171,6 +171,13 @@ class Configuration
      */
     protected $tlsCipherList;
 
+    /**
+     * Free socket time allowed for reusing a connection
+     *
+     * @var int
+     */
+    protected $keepAliveTime;
+
     /**
      * Allow Curl encoding header
      *