Add following features  - Add support of JWT token.  - Add session route that fetch user details of from the database for saved user in the session - Add back-end support for session removing for logout
Add following features
 - Add support of JWT token.
 - Add session route that fetch user details of from the database for saved user in the session
- Add back-end support for session removing for logout

shavindraSN/examen,shavindraSN/examen,shavindraSN/examen