cmake: add run target for ABI tests

Signed-off-by: Matthias Kretz <kretz@kde.org>
Vector cctor and copy assignment are not needed

The default copy ctor and assignment operator suffice. Thus I don't want
to specify them in the "spec" and leave it out in Vc as well.

Signed-off-by: Matthias Kretz <kretz@kde.org>