This provides the ability to write live data from a table to Markdown,
which can be useful to load it into a text document or a wiki.
But so far QTextMarkdownWriter is still a private class, intended to be
used experimentally from QtQuick and perhaps later exposed in other ways.
Change-Id: I0de4673987e4172178604e49b5a024a05d4486ba
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
355ecfb11c