Keycode-Pad

Rust control-flow and shadowing practice by building a simple keycode application.

What should it do?

• It generates a random number of size 6, called the_code
• This number can be accessed through a get_code function
• Takes two user inputs - get_code and enter_code.
• get_code returns the current code.
• enter_code checks a user input against the_code.
• the user has three opportunities to enter the code correctly.
• if they fail, the_code is reset.
• and the user's guess count is reset as well.