Adding User Data Endpoints

[omerdikyol]

1. Adding User Data Endpoints to User Controller and User Route.
2. Routing Endpoints to /users/
3. Creating Register Login Endpoints to test User Data Endpoints. (testing purposes)
4. Adding Hash Function for Register and Login Endpoints (testing purposes) 5.Removing unnecessary .placeholder files.
5. Adding Specilization variable to User Model.
6. Adding Results Model taken from M3 ( to test Get Results Endpoint ).
7. Creating Simple Response interface. Note: Endpoints will not work without authorization and JWT Validation. So it will work after that task is closed.