Small path change suggestion to allow overriding your templates

[jimbglenn]

On line 48 of Doctrine/DocumentClassGenerator.php, you have the template's full paths.

        $documentPath = $this->generator->generateClass(
            $documentClassDetails->getFullName(),
            $generateEmbeddedDocument ? __DIR__.'/../Resources/skeleton/doctrine/EmbeddedDocument.tpl.php' : __DIR__.'/../Resources/skeleton/doctrine/Document.tpl.php',
            [
                'use_statements' => $useStatements,
                'repository_class_name' => $repoClassDetails->getShortName(),
                'api_resource' => $apiResource,
                'collection_name' => $collectionName,
                'embedded' => $generateEmbeddedDocument,
            ]
        );

If you drop the prefix down to the "doctrine" directory, the maker command will still find it in the skeleton directory.

$documentPath = $this->generator->generateClass(
            $documentClassDetails->getFullName(),
            $generateEmbeddedDocument ? 'doctrine/EmbeddedDocument.tpl.php' : 'doctrine/Document.tpl.php',
            [
                'use_statements' => $useStatements,
                'repository_class_name' => $repoClassDetails->getShortName(),
                'api_resource' => $apiResource,
                'collection_name' => $collectionName,
                'embedded' => $generateEmbeddedDocument,
            ]
        );

I did some quick attempts and it seems to work.
The advantage here, would be the maker command is setup to allow users to override the templates without having to override any of the rest of the code.

With the proposed change above, that means in my project, I can use your library, and put a file /doctrine/Document.tpl.php which I could use to override the template you provided.

Our team would like to add additional imports, annotations, etc on the class by overriding your template.

Here's the related question on how it works with the ORM Maker command:
https://stackoverflow.com/questions/75164548/override-symfony-makeentity-to-load-custom-columns