RFR: 8271071 accessibility of a table on macOS lacks cell navigation

[Victor Dyakov]

On Fri, 10 Sep 2021 15:11:20 GMT, Artem Semenov <github.com+36081106+savoptik at openjdk.org> wrote:

> We've extended the current implementation of TableAccessibility to make sure that individual cells are voiced when navigating with the keyboard.

@pankaj-bansal @azuev-java please review

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PR: https://git.openjdk.java.net/jdk/pull/5466