Summary: Allow user to open the context menu on an element in the ax tree and request accessibility focus to that element. If the element is focusable (and talkback or another accessibility service is running), accessibility focus will change to that element, if not, it will not change anything.
Differential Revision: D9162382
fbshipit-source-id: 5dda9b87a2cc6eba4130e3feee978b5fa38ac9f1
Summary: Added duplicate view tree (will be replaced with accessibility node tree eventually). Can toggle ax mode on and off and interact with each tree individually to view/change properties.
Reviewed By: danielbuechele
Differential Revision: D8717557
fbshipit-source-id: 1109ccafd49b6958ee7a70c2e8851ed8351516ae
