Added token, user, userRepository and userSecurity in user folder. This handles creating new users, loging in and creating a user specific token then returning it when logging in.

seasoned_api/src/user/user.js

@@ -0,0 +1,8 @@
+class User {
+  constructor(username, email) {
+    this.username = username;
+    this.email = email;
+  }
+}
+
+module.exports = User;