In this programming assignment, you will develop a project that implements an engineering library. You will implement and test structures in this project. They are the BookType, ClientRecord.

Functions needed for the program are:

$$ A addBook function

$$ A addClient function

$$ A saveBookList function

$$ A borrowBook function.

$$ A returnBook function.

Structures should include:

$$ The six comparison operators.

$$ The assignment operator$=.$

$$ The operator $<<($as a friend function$).$