User wants to be able to pass a param to the unzip command that sorts file types into directories labeled for that file type.

Example:

`cmd unzip -s` will sort the contents by file type and put those particlar files in the particular folders.

The example results would be *.txt files go into a `txt` filder, *.js files would go into a `js` folder and so on. Files without an extension would go into a `no_extension` folder.