Added first app template

backend/login-counter/app.Configuration/AuthentificationSettings.cs

@@ -0,0 +1,11 @@
+namespace app.Configuration
+{
+    public class AuthentificationSettings
+    {
+        public string SecretKey { get; set; }
+        public string Issuer { get; set; }
+        public string Audience { get; set; }
+        public int TokenExpireTime { get; set; }
+        public int RefreshTokenExpireTime { get; set; }
+    }
+}