Made CMS_MODULE.name deferred, and implemented by constant so that it can be use as static call.

Copied site resources on related module source folder.
Renamed "login" module as "auth" module, and updated related locations and files.

modules/oauth20/site/scripts/oauth2_table.sql.tpl

@@ -0,0 +1,10 @@
+
+CREATE TABLE $table_name (
+   `uid` INTEGER PRIMARY KEY NOT NULL CHECK(`uid`>=0),
+   `access_token` TEXT  NOT NULL,
+   `created` DATETIME NOT NULL,
+   `details` TEXT NOT NULL,
+   CONSTRAINT `uid`
+    UNIQUE(`uid`)
+   );
+