Add namespaces in codeigniter 3

Hi,


I think namespaces using will improve codeigniter structuration without make it more difficult its use.

For example current model loading way is some magic:

$this->load->model('users_model', 'users');

If someone read this php code, must to know that this sentence load Users_model class from models/users_model.php into $this->users only because is a codeigniter convenion

In addition to this, the IDEs need namespace information to helps developer in his work. 

Greetings.