[API] As a user, I can register an account

[mosharaf13]

Why

User should be able to use api to registration without login before

Acceptance Criteria

• User can send POST JSON REST API to registration with the following information
  • Name
  • Username
  • Password
  • Confirm password
• Response with status 201 Created with user information in case of completed registration
• Response with status 400 Bad request and error message in case of failed validation or incomplete registration