printf, stdout, stderr

Convenience functions for text output (printf, stdout, and stderr).

I find that I often want to either print control characters or print out prettier output than can easily be done with just the built-in disp function. I've written a wrapper around fprintf that outputs to stdout and included stdout and stderr functions. What this allows you to do is replace code like:
fprintf(1, 'My result is: %d', foo);
with cleaner code like
printf('My result is: %d', foo);

The code has been tested on MATLAB 12.1 and 13, but I'd have a hard time believing it doesn't work on much older versions.