Fix copying subabilities to no longer duplicate them (#11399)

* Fix Subability copy bug (fix #10526 )

* Cards which copy abilities of other cards should not copy subabilities.

* Enable previously-failing tests

* Find more addAbility that should be done without subabilities

* Add documentation to addAbility function

* Add warning about not using basic addAbility when copying from a source

* Invert withSubabilities to fromExistingObject

Mage/src/main/java/mage/game/permanent/PermanentToken.java

@@ -89,7 +89,8 @@ public class PermanentToken extends PermanentImpl {
             // first time -> create ContinuousEffects only once
             // so sourceId must be null (keep triggered abilities forever?)
             for (Ability ability : token.getAbilities()) {
-                this.addAbility(ability, null, game);
+                //Don't add subabilities since the original token already has them in its abilities list
+                this.addAbility(ability, null, game, true);
             }
         }
         this.abilities.setControllerId(this.controllerId);