Program that reads a text file and can either encrypt or decrypt
OOP Utilized
To encrypt a story: "encrypt_story("plainStory.txt",5)"
#where the text file is the first argument and the second argument is the number of shifts
to decrypt a story : decrypt_story("story.txt")
#Where the input story is the text argument. Notice how there is no shift number, that is because the program will use a Cipher algorithm to decrypt any message that uses Caesar-Cipher-Encryption.
Test cases are included at the bottom of the code.