Caesar Cipher Encrypt/Decrypt
#Usage -m/--mode ==> e or encrypt / d or decrypt
-k/--key ==> number of the key to encrypt or decrypt, if you don't pass a key in decrypt mode, it will try all.
-t/--text ==> text to encrypt or decrypt
#Example python gambler_caesar.py -m encrypt -k 13 -t "Hello World!"
uryyb jbeyq!