Component Traversal

[MartinW]

Suggested addition to the Traversal Order screen.

Adds a Component Traversal view as a container. Adds a TileView which demonstrates setting the accessibility label for a view, to allow the user to navigate the app easier.

This sets an accessibility label and accessibility trait to the view. It also disables the accessibility element for the UILabels.

[rwapp]

Thanks Martin. This is a great addition, I apologise its taken so long for me to take a look.

Two minor improvements if you have the chance please.

1. two of the tiles have a default background colour still so they look a little weird with dark mode enabled.
2. Setting the views to have a fixed height means they don't work with dynamic text sizes. Ideally this screen should be in a scroll view, but it looks like I missed it. I think using a scroll view and a bottom constraint of >= 20 should make these work ok without a fixed height constraint?

I really appreciate your input here.