Implement an _html_repr_ for the option classes

[ihincks]

What is the expected feature or enhancement?

The printout of an options class is hard to read. If we implemented _html_repr_ to return an HTML table, it would render nicely in environments that support this method, like jupyter notebooks. When I looked into it briefly, it seemed easier than trying to modify the __str__ or the __repr__ because dataclass creation seems to eagerly overwrite such definitions from a base.

Acceptance criteria