Added U2F Support for YubiKey

src/express.d.ts

@@ -1,5 +1,6 @@
 import { IUser } from "./models/user";
 import { IClient } from "./models/client";
+import { ILoginToken } from "./models/login_token";
 
 declare module "express" {
    interface Request {
@@ -7,5 +8,9 @@ declare module "express" {
       client: IClient;
       isAdmin: boolean;
       special: boolean;
+      token: {
+         login: ILoginToken;
+         special?: ILoginToken;
+      }
    }
 }