Rule idea: Table has accessible name

Most screen readers have the ability to navigate by table and to pull up a list of tables. In navigating a page that way it is helpful to make sure all tables have an accessible name. It is therefore a **best practice** for all tables to have an accessible name.

We need to do some testing to figure out what types of tables will be navigated / listed by screen readers. Native `` elements definitely. I'm not sure if elements with `role="table"` and/or `role="grid"` are too. If they do. We'll need to gather some test data about this before we can write this rule.