[Qt-creator] DiffEditor and VcsBase dependency

[André Hartmann]

Hi all,

I'd like to add clickable link support to the DiffEditor description
widget, like it is already provided in Git log.

VcsBaseEditor provides the needed functionality, but that class belongs
to VcsBase.

And VcsBase depends on DiffEditor, so I cannot directly use
VcsBaseEditor in DiffEditor.

How can I break this dependency chain?

Thanks,
André