RecipeConfigInstaller should process translation config files

I added a MR with an update to RecipeConfigInstaller to install config in collections if provided. It works, although I'm not sure if there should be more to it than that, ie does the config in collections also need the dependency manager.

I added an example_translation recipe and an automated test.

I think supporting this is fine. I'm not sure it is going to be used that much (in the same way it is not used much for module's either).

OTOH - maybe we should consider not supporting this. Translating recipes needs thinking about.

If the idea is for the recipes to allow adding new functionalities to a portal and considering that Drupal is a multilingual system, I personally think it is most sensible for the recipes to take translations into account. Otherwise, in multilingual portals, you will be adding incomplete functionalities, requiring manual configurations.

I created a branch from Laura's adding some changes to allow applying English recipes on portals where the default language is not English.