new feature: Emblem Cards (#10498)

* new feature: Emblem Cards

Allows match/tournament creator to specify cards to give each player
emblem versions of (or just the starting player for symmetric effects).

Technical details:
- new UI for specifying emblem cards (.dck files)
  - available for all match/tournament types
- new class `EmblemOfCard`
- new method `copyWithZone` on `AbilityImpl` (used to make abilities
  work from command zone)
- new fields on `GameOptions` and `MatchOptions` for emblem cards
- emblems are granted after mulligans, before first turn (technically
  after Planechase starting plane creation)

* fixes

* defaults for emblem cards in match options (fixes quick game buttons)

* minor fixes

* use DeckCardInfo instead of Card for emblem cards options

* restore accessible parent properties

* fix images for card emblems

* look up cards in a way that preserves which art

* fix typos; make Emblem.sourceObject protected

* add descriptions to planechase and emblem cards

* fixes

* add some unit tests for known working cards

* fix author name

* add explanation comment

* fix up tests

* copyWithZone: no longer modifies zone for singleton abilities

* directly check for MageSingleton

Mage/src/main/java/mage/abilities/AbilityImpl.java

@@ -1481,6 +1481,13 @@ public abstract class AbilityImpl implements Ability {
     }
 
     public AbilityImpl copyWithZone(Zone zone) {
+        if (this instanceof MageSingleton) {
+            // not safe to change zone for singletons
+            // in theory there could be some sort of wrapper to effectively change
+            // the zone here, but currently no use of copyWithZone actually needs
+            // to change the zone of any existing singleton abilities
+            return this;
+        }
         AbilityImpl copy = ((AbilityImpl)this.copy());
         copy.zone = zone;
         copy.newId();