As a new user I want to register myself so that I can login to the system

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Task

• [ ] Configure CORS to accept request from front end IP #70
• [ ] Integrate front end to back end

Acceptance criteria

• [ ] Given no user of same username already exists, When I submit my registration data, Then the system should confirmation that I have been registered.
• [ ] Given a user of same username is already registered in the system, When I submit my registration data, Then the system should provide an error message informing the user is already registered.
• [ ] Given I provide incomplete form data, When I submit my registration, Then the system should inform which form data is incomplete.
• [ ] Given I provide different password confirmation, When I submit my registration, Then the system should inform the password does not match its confirmation.