Enable fastlane via the UI

[wjmclaugh]

Use case

I rely upon a custom yaml script to publish to the app store because I would like to use fastlane to automatically push localized metadata (title, description) to the app page.

Idea

I am wondering if it would be possible to have fastlane functionality (or at least this metadata publishing feature) when using the default build UI for Codemagic. It would save time from writing a custom script and could be a more practical alterative for many users.