[XODIDOX]

Busy with real work, so don't have much time to work on this for the asked feature, but I finished the most wanted feature to show video with multiple versions as folder in library.

Thanks for the suggestions for the version management dialog, I have thought a lot before designing the dialog. It refers the "Set Content" and "Add Source" dialog, I believe it follows other dialogs in Kodi. Usually, you only have very few major versions of a movie (let's say 2 will cover most cases), so it's meaningless to make the list very long, and keep both version and extras in same location is saving time to press buttons to show them, etc. And I added shortcut to the dialog with the "left" button to quickly switch between version and extras lists.

I would greatly appreciate it if any Kodi team members could kick a test build for the latest change. Thanks!