[jdk11u-dev] RFR: JDK-8261352- Create implementation for component peer for all the components who should be ignored in a11y interactions

[Autumn Capasso]

[JDK-8261352](https://bugs.openjdk.org/browse/JDK-8261352) Mostly clean, 3/28 backports for accessibility.

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Commit messages:
 - JDK-8261352 create implementation for component peer for all the components who should be ignored in a11y interactions
 - 8256110: Create implementation for NSAccessibilityStepper protocol

Changes: https://git.openjdk.org/jdk11u-dev/pull/1545/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1545&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8261352
  Stats: 580 lines in 9 files changed: 526 ins; 51 del; 3 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1545.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1545/head:pull/1545

PR: https://git.openjdk.org/jdk11u-dev/pull/1545