My assignment is to create software for the management of a library in C language with the following functionalities. Register users. User login. Users can search for books. Users can borrow and returns books. A special user, the librarian, can also add and remove books to the library. The state of the library (books, users, and loans) is saved to file and restored at a new execution. The software needs to have more than one module. Any help will be greatly appreciated. thank you.