<AWT Dev> RFR: 8267385: Create NSAccessibilityElement implementation for JavaComponentAccessibility

[Artem Semenov]

8267385: Create NSAccessibilityElement implementation for JavaComponentAccessibility
This pull request contains solutions for the following tickets:
* JDK-8267385 Create NSAccessibilityElement implementation for JavaComponentAccessibility;
* JDK-8262031 Create implementation for NSAccessibilityNavigableStaticText protocol;
* JDK-8264287 Create implementation for NSAccessibilityComboBox protocol peer;
* JDK-8264303 Create implementation for NSAccessibilityTabGroup protocol peer;
* JDK-8264292 Create implementation for NSAccessibilityList protocol peer;
* JDK-8267387 Create implementation for NSAccessibilityOutline protocol;
* JDK-8267388 Create implementation for NSAccessibilityTable protocol.

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Commit messages:
 - 8267388: Create implementation for NSAccessibilityTable protocol
 - 8267387: Create implementation for NSAccessibilityOutline protocol
 - 8264292: Create implementation for NSAccessibilityList protocol peer
 - 8264303: Create implementation for NSAccessibilityTabGroup protocol peer
 - 8264287: Create implementation for NSAccessibilityComboBox protocol peer
 - 8262031: Create implementation for NSAccessibilityNavigableStaticText protocol
 - 8267385: Create NSAccessibilityElement implementation for JavaComponentAccessibility

Changes: https://git.openjdk.java.net/jdk/pull/4412/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4412&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267385
  Stats: 4696 lines in 52 files changed: 4526 ins; 108 del; 62 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4412.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4412/head:pull/4412

PR: https://git.openjdk.java.net/jdk/pull/4412