Expose console as a real Composer binary

[wouterj]

...and rename it to docs-builder

[weaverryan]

Fine with me: we clearly state this is an internal tool, so I don't have any problem with exposing a binary. Probably the symfony.com build process will just need to update after we tag this - so FYI @javiereguiluz

[javiereguiluz]

I think this won't affect symfony.com because we don't use this tool via a high-level command run via Symfony's Process component (we did that in the past). Instead, we use it via low-level function calls such as:

$buildConfig = (new BuildConfig())->...();
$result = (new DocBuilder())->build($buildConfig);
if ($result->isSuccessful()) { ... } else { ... }

This is the same I'm proposing in the "doc build instructions" at symfony/symfony-docs#16068 Please, tell me what do you think about it. Thanks!

[javiereguiluz]

Thank you Wouter.