Sylius Sitemap Plugin exists: https://github.com/stefandoorn/sitemap-plugin. Would be great to have a provider to include the page URL's into it.

Some options:

• Only provide a provider in this repo with tag sylius.sitemap_provider and add the sitemap plugin as a suggest to composer.json. And optionally put the activation behind a config setting.
• Provide functionality in a separate repo that requires both this package and the sitemap package + add the provider

@bitbager What do you prefer?