Support for Ibexa 3+

[marekiwaniak]

Due to end of life of php7.4 I attempted to upgrade eZ Platform 2.5 project to Ibexa 3.3, so we can operate on php8.

What I found:

1. remote-media-bundle:3.0.x-dev installs ok and follows Symfony5 BC changes but lacks any support for eZ FieldTypes resulting in

"Could not find 'eZ\Publish\SPI\Persistence\Content\FieldValue\Converter\*' with identifier 'ngremotemedia'"

3. I can install remote-media-bundle:2.0.x-dev but DependencyInjection/Configuration breaks due to changes in TreeBuilder and /Core/FieldType/RemoteMedia/* need adaptation to meet updates FieldType interfaces.
   I managed to overcome those issues by exluding vendor classes from autoload and replacing with my overrides but then I got

Argument 3 passed to Netgen\Layouts\RemoteMedia\ContentBrowser\Backend\RemoteMediaBackend::__construct() must be an instance of Symfony\Component\Translation\TranslatorInterface, instance of Symfony\Component\Translation\DataCollectorTranslator given

which might require ticket in layouts remote media repository.

I assume completing FieldType bundle for v3 where lot of rework is happening might be a big project, but maybe you can consider introduction of some indirect version between 2.0 and 3.0 that will address minor BC changes to help running Ibexa 3 installations while waiting for major work on 3.0 to get finished.