[1pt] Create item class in a separate .rb file - Group task

[ikoote1]

Changes to be made;

1. Create Item class in a separate .rb file.
2. All Item class properties visible in the diagram should be defined and set up in the constructor method.
3. Add all methods visible in the diagram.
4. Implement methods:

• can_be_archived?() in the Item class Should return true if published_date is older than 10 years Otherwise, it should return false

• move_to_archive() in the Item class Should reuse can_be_archived?() method Should change the archived property to true if the result of the can_be_archived?() method is true Should do nothing if the result of the can_be_archived?() method is false