Add Contact Object

- Add Profile Object
- Add User Model
- Add use statements

mod/common.php

@@ -5,6 +5,7 @@
 use Friendica\App;
 use Friendica\Database\DBM;
 use Friendica\Model\GlobalContact;
+use Friendica\Object\Contact;
 
 require_once 'include/Contact.php';
 require_once 'include/contact_selectors.php';