[jfx25u] RFR: 8271024: Implement macOS Metal Rendering Pipeline

Tue Nov 4 12:08:21 UTC 2025

Backport metal implementation to jfx25u.
The backport is nearly clean with only one conflict that: The file `modules/javafx.graphics/src/main/java/com/sun/glass/ui/headless/HeadlessView.java` is not present in jfx25u.
No issues observed with build and test.

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Commit messages:
 - 8271024: Implement macOS Metal Rendering Pipeline

Changes: https://git.openjdk.org/jfx25u/pull/30/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx25u&pr=30&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8271024
  Stats: 12322 lines in 105 files changed: 11457 ins; 709 del; 156 mod
  Patch: https://git.openjdk.org/jfx25u/pull/30.diff
  Fetch: git fetch https://git.openjdk.org/jfx25u.git pull/30/head:pull/30

PR: https://git.openjdk.org/jfx25u/pull/30