Sections of output

[g105b]

It would be useful to refactor and enhance the output from just simple writeLine usage.

Idea:

$section = new OutputSection("The title of this section:");
$section->writeLine("Some text that will be indented", Colour::GREEN);

Oh, but Americans will hate the word Colour, so something else should be used.

[g105b]

This would be useful in the future, but there's still only a tiny amount of Cli usage across PHP.Gt, so I'm parking this for now to concentrate on shifting WebEngine v4.