Manually routing Accessibility clicks for RecyclerView classes.

DocsUI uses TouchDetector to differentiate mouse/gesture events; this
prevents a11y services to know what logic to run when there's a
ACCESSIBILITY_CLICK event. This CL manually adds these accessibility
click events to child views, and also route these to correct click
callbacks.

Test: Manually done
Bug: 32412100
Bug: 30613053
Change-Id: If3bf2a039b3cb269e32555d1740f0420cfa50b93