Allow NavLink to change arbitrary props

[tyteen4a03]

I have a component that has a tab on the top that has an isActive prop (to show which tab is currently being opened) and an <Outlet> to show the tab content under the sub-route. Currently, the <NavLink> component doesn't support changing arbitrary props.

It would be great for this to be added to allow us to work with UI Libraries like Chakra UI.