8256108: Create implementation for NSAccessibilityElement protocol peer

[WithEnoughCoffee]

JDK-8256108 part of 28.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8256108: Create implementation for NSAccessibilityElement protocol peer

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev pull/1565/head:pull/1565
$ git checkout pull/1565

Update a local copy of the PR:
$ git checkout pull/1565
$ git pull https://git.openjdk.org/jdk11u-dev pull/1565/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1565

View PR using the GUI difftool:
$ git pr show -t 1565

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/1565.diff

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[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (6d1cfd1f)

[phohensee]

Please remove the copyright line update, it's already at 2021 so shouldn't go back to 2020. Otherwise, lgtm.

[WithEnoughCoffee]

Please remove the copyright line update, it's already at 2021 so shouldn't go back to 2020. Otherwise, lgtm.

Done. Thank you so much.