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_consumers.sql

@@ -0,0 +1,18 @@
+
+CREATE TABLE oauth2_consumers(
+   `cid` INTEGER PRIMARY KEY NOT NULL CHECK(`cid`>=0),
+   `name` VARCHAR(255) NOT NULL,
+   `api_secret` TEXT  NOT NULL,
+   `api_key` TEXT NOT NULL,
+   `scope` VARCHAR (100) NOT NULL,
+   `protected_resource_url` VARCHAR (255) NOT NULL,
+   `callback_name` VARCHAR(255) NOT NULL,
+   `extractor` VARCHAR(50) NOT NULL,
+   `authorize_url` VARCHAR (255) NOT NULL,
+   `endpoint`  VARCHAR (255) NOT NULL,
+   CONSTRAINT `cid`
+    UNIQUE(`cid`),
+   CONSTRAINT `name`
+    UNIQUE(`name`)
+   );
+