Add Contact Object

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

boot.php

@@ -27,6 +27,7 @@ use Friendica\Core\Config;
 use Friendica\Core\PConfig;
 use Friendica\Core\Worker;
 use Friendica\Database\DBM;
+use Friendica\Object\Contact;
 use Friendica\Util\Lock;
 
 require_once 'include/network.php';