Add project files.

CarParkValidationAPI/Interface/IJwtUtils.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using CarParkValidationAPI.Interface;
+using CarParkValidationAPI.Models;
+
+
+namespace CarParkValidationAPI.Interface
+{
+   public interface IJwtUtils
+    {
+        public string GenerateJwtToken(User user);
+        public int? ValidateJwtToken(string token);
+    }
+}