Add a new Factory (wrapper of Factory) to allow alias and rewrite

[MacFJA]

Extract from the class docblock

Class AliasFactory.

Alias factory allow you to define class alias to reduce class name.
For example, instead of:

$object = $factory->getInstance('\\My\\Super\\Application\\Entity\\User');

You can just define an alias and class it:

$factory->registerAlias('\\My\\Super\\Application\\Entity\\User', 'User');

//... later in your code

$object = $factory->getInstance('User');

(Of course, in most of case we use use \My\Super\Application\Entity\User and
$object = $factory->getInstance(User.class) which is already a short syntax).

But you can also define factory override.
Let's imagine that your project have a \SomeOne\Framework\Application class, but have have extend it in your class \My\Framework\Application.
To shameless use your class instead of their, just do:

use \SomeOne\Framework\Application as BaseApplication;
use \My\Framework\Application;

$factory->registerAlias(BaseApplication.class, Application.class);

Now $factory will return \My\Framework\Application when you ask the factory for \SomeOne\Framework\Application