Composer update

* updated Laravel to v5.6.38
* Added laravel tinker in dev dependencies

vendor/aws/aws-sdk-php/src/Exception/EventStreamDataException.php

@@ -0,0 +1,38 @@
+<?php
+namespace Aws\Exception;
+
+/**
+ * Represents an exception that was supplied via an EventStream.
+ */
+class EventStreamDataException extends \RuntimeException
+{
+    private $errorCode;
+    private $errorMessage;
+
+    public function __construct($code, $message)
+    {
+        $this->errorCode = $code;
+        $this->errorMessage = $message;
+        parent::__construct($message);
+    }
+
+    /**
+     * Get the AWS error code.
+     *
+     * @return string|null Returns null if no response was received
+     */
+    public function getAwsErrorCode()
+    {
+        return $this->errorCode;
+    }
+
+    /**
+     * Get the concise error message if any.
+     *
+     * @return string|null
+     */
+    public function getAwsErrorMessage()
+    {
+        return $this->errorMessage;
+    }
+}