Turns a single file into a Joliet level 3 compatible ISO file.
$ ./file2iso.py -h
usage: file2iso.py [-h] file
positional arguments:
file file to turn into a Joliet level 3 ISO file
optional arguments:
-h, --help show this help message and exit
$ ./file2iso.py demo.txt
$ ls demo*
demo.txt demo.txt.iso