Challenge 1 - TextWindow login

[litdev]

Write a TextWindow login program.

It should have options to:

• create and account and set a password
  
• login using existing account and password (checking the password)
  

To extend the program you could:

• have a reset password option
  
• save the passwords so that the program can be rerun
  
• consider how to 'encrypt' the passwords
  
• write a GraphicsWindow version