fix referencing issues ...

fix seeding issues ...
fix SubCategory Refresh and Add Support for handle Category Referesh and Referencing ...

Providers/XCategoryServiceSeeder.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace xCategoryService.Providers
+{
+    public class XCategoryServiceSeeder
+    {
+        
+    }
+}