* [angle] Update to chromium/5249
- Refactor build system based on WebKit's CMake build system for libANGLE
- Add maintainer-notes.md
* [angle] Fetch & generate more files in portfile
* [angle] Move maintainer-notes.md
* [angle] Port changes from #27701
* Merge install tweak from #28547
* [angle] Tweak PlatformLinux
* Run x-add-version
* [angle] Update to chromium/5414
* Run x-add-version
* Fix version database.
* Fix version database
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Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com>
Co-authored-by: Jonliu1993 <13720414433@163.com>