Support for recursive flag

[rightaway]

If using diff --recursive only the first result has the proper formatting of the file names Renamed: file1 to file2 with the coloring etc. Would be good to see it on all files and have full support of recursive flag, including when a file is in one directory and not the other.

[scottchiefbaker]

You're talking about vanilla diff? Not git diff output?

[rightaway]

@scottchiefbaker Yes for both vanilla diff and git diff, I'd like to pass it to diff-so-fancy even if it's --recursive and have formatted result.