added IsSpecial property

Author: Not Officer

src/Fortnite-API/Objects/BrShopEntry.cs

@@ -9,6 +9,7 @@ public class BrShopEntry
 		[J("regularPrice")] public int RegularPrice { get; private set; }
 		[J("finalPrice")] public int FinalPrice { get; private set; }
 		[J("isBundle")] public bool IsBundle { get; private set; }
+		[J("isSpecial")] public bool IsSpecial { get; private set; }
 		[J("giftable")] public bool Giftable { get; private set; }
 		[J("refundable")] public bool Refundable { get; private set; }
 		[J("panel")] public int Panel { get; private set; }