Support GridFS adapter

[GromNaN]

The GridFS adapter have been reintroduced in flysystem v3.28.

This PR introduces 3 ways to configure the adapter:

• With Doctrine MongoDB ODM Bundle, by setting the connection name
• With a full configuration to connect to MongoDB and select a database.
• With a custom service for MongoDB\GridFS\Bucket

I'm not fully satisfied by the integration yet, as it requires declaring many services in order to get the MongoDB\GridFS\Bucket service. I would like the setup to be more automatic when doctrine/mongodb-odm-bundle is used, as the bundle already configures the MongoDB\Client and the database to use.

[maxhelias]

I'm not familiar with the mongo bundle but I see 2 options to improve the integration on this side:

• Put doctrine/mongodb-odm-bundle in the adapter's required packages.
• Add a compiler pass (like https://github.com/thephpleague/flysystem-bundle/blob/3.x/src/DependencyInjection/Compiler/GcloudFactoryPass.php) and manage the configuration of these definitions with and without the mongo bundle.

Hope these options will help you

[GromNaN]

Thanks for the review. I used factories to create MongoDB\GridFS\Bucket instances from a doctrine connection name, or a full configuration. I'm delighted that I didn't need to use a compiler pass.

[maxhelias]

Thanks for this integration, just 2 small comments

[maxhelias]

@GromNaN Can you fix the CI coding style pls ?

[GromNaN]

@GromNaN Can you fix the CI coding style pls ?

Done. And commits squashed.

[maxhelias]

Thanks @GromNaN !