Create a new class that encapsulates the profile-widget UI.
This is called ProfileWidget, which might be confusing since
the actual display is called ProfileWidget2. However, the
plan is to rename the latter to ProfileView. After all, it
is also used to print and to show the profile on mobile.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
