User should be able to create a Customer account

[stevebrownlee]

Given a new customer calls with a request for a representative to handle When the user select the option to create a customer account Then the user should be presented with prompts to enter in customer information

Enter customer name
>

Enter street address
>

Enter city
>

Enter state
>

Enter postal code
>

Enter phone number
>

[DreRandaci]

• Create class: Customer.cs
• Create class: CustomerManager.cs
• Method to Add a customer to the database
• Test that asserts if a customer exists in a collection and has the correct properties
• • Customer can be added to a collection
• • Customers can be displayed in an ordered list