Design and implement user management service

[vinayakasg18]

Tasks for the first milestone:

For the first phase, 3 APIs (login and registration, and saving user queried details) are to be created.

• User can use userId and password for login to the system.
• For the first phase, there are no restrictions on the type of passwords used.
• For registration, username, password are to be passed as input.
• Username should be unique for each user.
• Passwords must be encoded before storing them in the data storage.
• If the user is registered successfully, a message will be prompted for successful registration.
• After successful registration, the user must be redirected to the login page.
• Users must be verified while it tries to log in to the system.
• Only verified users must be able to log in to the system.

Authorization, authentication, and token-related session management to be implemented in coming phases.

[vinayakasg18]

User Management development is completed and code is available under branch 'feature/3-user-management-service' and PR 'https://github.com/airavata-courses/DCoders/pull/13'.