InputOutput.php

Is the readline library on the system?

Get input from the shell, using readline or the standard STDIN Named options must be in the following formats: php index.php user -v --v -name=John --name=John

While the library is intended for use on CLI commands, commands can be called from controllers and elsewhere so we need a way to allow them to still work. For now, just echo the content, but look into a better solution down the road.