add copy CloneBrush constructor to be able to use it with QMap.
use more private internal container.
Huge fixes in CloneSettings to be able to compile it as well. It miss some FIXME to check.
Polish Polish and polish again.

Why CloneContainer store brushDia and mainDia ? It store already CloneBrush which has already dia value. What's the difference between brushDia and mainDIa ?

How are you tested this implmentation ? It doesn't compile as well ? Strange...