Restore publishing

[Csardelacal]

In order to focus on more critical components, publishing has been removed. But having a mechanism for dependencies to 'inject' resources would be amazing.

See :

• https://github.com/Csardelacal/SpitfireEngine/blob/d2dc20a9c3296c4389e57c9027a4d345b7537013/core/resource/PublisherDirector.php
• https://github.com/Csardelacal/SpitfireEngine/blob/d2dc20a9c3296c4389e57c9027a4d345b7537013/core/resource/PublisherProvider.php
• https://github.com/Csardelacal/SpitfireEngine/blob/d2dc20a9c3296c4389e57c9027a4d345b7537013/core/resource/Publisher.php

[Csardelacal]

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