RH Theme: Navigation - Left, Horizontal

[andrew-ronaldson]

[markcaron]

I think this is part of a larger discussion on how we handle navigations and menus...

We're also working on a <rh-navigation-vertical> which has a lot of similarities (at least visually) with PatternFly's Navigation component.

And, our <rh-subnav> element has similarities to the Horizontal and Horizontal Subnav variants in PF.

Also connecting this issue with my Menu/Dropdown/Navigation comment