Added Judge Promos

Mage.Client/src/main/java/mage/client/util/sets/ConstructedFormats.java

@@ -91,6 +91,7 @@ public class ConstructedFormats {
             "Friday Night Magic",
             "Game Day",
             "Guru",
+            "Judge Promo",
             "Unhinged",
     };
     
@@ -456,6 +457,9 @@ public class ConstructedFormats {
         if (format.equals("Guru")) {
             return Arrays.asList("GUR");
         }
+        if (format.equals("Judge Promo")) {
+            return Arrays.asList("JR");
+        }
         if (format.equals("Unhinged")) {
             return Arrays.asList("UNH");
         }