[jdk11u-dev] RFR: 8133713: [macosx] Accessible JTables always reported as empty

[Martin Doerr]

Backport of [JDK-8133713](https://bugs.openjdk.java.net/browse/JDK-8133713)
Required adaptation for JNF removal ([JDK-8257852](https://bugs.openjdk.java.net/browse/JDK-8257852)):
Definition and usage of `jm_getTableInfo` in JavaComponentAccessibility.m.
With this change, VoiceOver works for JTableAccessible.java (attached to JBS issue). Failed without this change.

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Commit messages:
 - Backport b3b647ef9a25ecfc6e39f4662367c5095f9e0971

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/1097/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1097&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8133713
  Stats: 111 lines in 3 files changed: 98 ins; 0 del; 13 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/1097.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/1097/head:pull/1097

PR: https://git.openjdk.java.net/jdk11u-dev/pull/1097