Enable conversion between `ForEachSC` and `ForEachMOSA`

Let's add a method to initialize a ForEachMOSA instance from a ForEachSC instance, by copying values.

changed milestone to %v1.0

added feature label

created merge request !18 (merged) to address this issue

mentioned in merge request !18 (merged)

closed with merge request !18 (merged)

mentioned in commit 7e7c807a