Added city blessing hint as enum

Mage/src/main/java/mage/abilities/hint/CitysBlessingHint.java

@@ -0,0 +1,24 @@
+package mage.abilities.hint;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.common.CitysBlessingCondition;
+import mage.game.Game;
+
+/**
+ * @author JayDi85
+ */
+public enum CitysBlessingHint implements Hint {
+
+    instance;
+    private static final ConditionHint hint = new ConditionHint(CitysBlessingCondition.instance, "Have city's blessing");
+
+    @Override
+    public String getText(Game game, Ability ability) {
+        return hint.getText(game, ability);
+    }
+
+    @Override
+    public Hint copy() {
+        return instance;
+    }
+}