xenodron mentionned that one of the use of setSourceId is to more easily find the Event that use non-standard
sourceId.
So reverting the change made in a previous commit.
It was a non-functional change meant to ease new
BatchEvent sharing sourceId, but I'll use setSourceId
instead there.
* create new abstract class for batch event framework
* adjust CardUtil.getEventTargets to support new framework
* update TappedBatchEvent to new framework
* update UntappedBatchEvent to new framework
* slight cleanup
* update LifeLostBatchEvent to new framework
* update ZoneChangeBatchEvent to new framework
* complete refactor by moving damage events to new framework
* remove old code no longer used
* clean up some nonsense code in star wars card
* fix watcher checking id before event type
* fix wrong id usage
* fix missed wrong id usage
