isempty property for appreviews

src/OnePeek.Api/AppRatingEndpoint.cs

@@ -62,6 +62,8 @@ namespace OnePeek.Api
         };
       });
 
+      result.IsEmpty = result.Reviews == null || !result.Reviews.Any();
+
       return result;
     }
   }

src/OnePeek.Entities/AppReviews.cs

@@ -8,6 +8,8 @@ namespace OnePeek.Entities
   {
     public string Id { get; set; }
 
+    public bool IsEmpty { get; set; }
+
     public DateTime? StoreDataModifiedDate { get; set; }
 
     public StoreType StoreType { get; set; }