Sort packages and class names

[BjoernKellermann]

Thanks for the great tool.

Is it possible to sort the list of packages and classes in navigation view and DSM picture?

Please see screenshot unsorted packages with same prefix...

[romani]

@BjoernKellermann , we have nobody currently on this project, you are welcome with PullRequest.
If that is going out of dtangler library , it might be not that easy.