Add ability to recreate deleted future-dated adapter changes (Time Offset Flag etc)

In ticket https://voice.unifysolutions.net/en/communities/6/topics/4238-time-offset-flag-didnt-re-evaluate-when-date-threshold-was-passed?redirect_to_reply=21889# Beau mentions that:

Add functionality to recreate deleted future-dated adapter changes to the UNIFYBroker UI (and API).

This should also be called automatically after a Clear Adapter Changes operation completes, because it is unlikely that there are any conceivable scenario where future-dated changes should not be restored, and without them UNIFYBroker does not operate sensibly (i.e. expected transforms silently fail to trigger when the configuration suggests they should).

Also, update the Clear Adapter Changes documentation in Voice to indicate that after running Clear Adapter Changes some transforms will no longer work correctly until Clear Precalculated Entities is run or all relevant date fields on all adapter entities are updated.