Code changes

Did not run code. Had a spur of the moment to try something out.

Models/Shared/UserCredentials.cs

@@ -0,0 +1,8 @@
+namespace Icarus.Models.Shared
+{
+    public class UserCredentials
+    {
+        public string Username { get; set; }
+        public string Password { get; set; }
+    }
+}