improve breadcrumbs inheritance: if child defines an item already in parent, remove every breadcrumb item from parent after it

see MSITE-582

suppose parent descriptor has following breacrumb items:
A > B > C > D > E > F

I want a child to remove D > E > F and replace with M > N > O
A > B > C > M > N > O

To do that, that child should define C > M > N > O

C is found in parent breadcrumb items, then we can delete the following parent items then add following child items