add composer's vendor directory

vendor/bshaffer/oauth2-server-php/src/OAuth2/Storage/ScopeInterface.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace OAuth2\Storage;
+
+/**
+ * Implement this interface to specify where the OAuth2 Server
+ * should retrieve data involving the relevent scopes associated
+ * with this implementation.
+ *
+ * @author Brent Shaffer <bshafs at gmail dot com>
+ */
+interface ScopeInterface
+{
+    /**
+     * Check if the provided scope exists.
+     *
+     * @param $scope
+     * A space-separated string of scopes.
+     *
+     * @return
+     * TRUE if it exists, FALSE otherwise.
+     */
+    public function scopeExists($scope);
+
+    /**
+     * The default scope to use in the event the client
+     * does not request one. By returning "false", a
+     * request_error is returned by the server to force a
+     * scope request by the client. By returning "null",
+     * opt out of requiring scopes
+     *
+     * @param $client_id
+     * An optional client id that can be used to return customized default scopes.
+     *
+     * @return
+     * string representation of default scope, null if
+     * scopes are not defined, or false to force scope
+     * request by the client
+     *
+     * ex:
+     *     'default'
+     * ex:
+     *     null
+     */
+    public function getDefaultScope($client_id = null);
+}