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.Common/src/main/java/mage/view/CardView.java

@@ -716,8 +716,9 @@ public class CardView extends SimpleCardView {
         // emblem images are always with common (black) symbol
         this.frameStyle = FrameStyle.M15_NORMAL;
         this.expansionSetCode = emblem.getExpansionSetCode();
-        this.cardNumber = "";
+        this.cardNumber = emblem.getCardNumber();
         this.imageNumber = emblem.getImageNumber();
+        this.usesVariousArt = emblem.getUsesVariousArt();
         this.rarity = Rarity.COMMON;
 
         this.playableStats = emblem.playableStats.copy();