add speak command?

I'm undecided on whether this functionality would be useful and in line with the simplicity of Logo, but here's the idea:

Have the turtle be able to print text to the screen.

Follow-on considerations for a such a feature include: enable configuring font type & size

The issue names no files, tests, or entry points. First clarify whether a speak command fits the project's simplicity, where text should appear, and whether font configuration is in scope; done should include an agreed command behavior and corresponding tests.

Written by the indexing model from the issue text.