Only fire one Targetted event per target

This specifically addresses changing the target of a spell or ability on the stack.
Fixes https://github.com/magefree/mage/issues/6158

Mage/src/main/java/mage/target/Target.java

@@ -136,4 +136,6 @@ public interface Target extends Serializable {
     void setTargetAmount(UUID targetId, int amount, Game game);
 
     Target withChooseHint(String chooseHint);
+
+    void setEventReporting(boolean shouldReport);
 }