Write a function borrow_book that takes a book ID. If the book is available (in the library_books list), remove it
from the list and add it to a separate list called borrowed_books. However, If the book the user wants to borrow is
not in the library_books list, but is in the borrowed_books list, then the user can request it. Requesting it means
that the book is added to a list called requested_books.
Example output: When the user successfully borrows a book, a message similar to this one is shown to the user:
The book with the ID 001 is successfully loaned to you now.
When the user attempts to borrow a book that is currently loaned to someone else, a message like this one is
shown to the user:
The book with the ID 001 is not available right now. However, we have requested it for you.
When the user attempts to borrow a book with an ID that does not exist in the system, a message like this one is
shown to the user:
The book with the ID 125 is unfortunately not available in the system. Please re-check the ID.
Fig: 1