Add Google authentication

vendor/OAuth/OAuth2/Token/StdOAuth2Token.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace OAuth\OAuth2\Token;
+
+use OAuth\Common\Token\AbstractToken;
+
+/**
+ * Standard OAuth2 token implementation.
+ * Implements OAuth\OAuth2\Token\TokenInterface for any functionality that might not be provided by AbstractToken.
+ */
+class StdOAuth2Token extends AbstractToken implements TokenInterface
+{
+}