vcpkg/ports/opengl-registry/copyright

The files installed by the `opengl-registry` port are using different licenses.
Each file defines its license in a comment at the top of the file.
[opengl-registry/egl-registry] update (#36856) - [x] Changes comply with the [maintainer guide](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/contributing/maintainer-guide.md). - [x] SHA512s are updated for each updated download. - [x] The "supports" clause reflects platforms that may be fixed by this new version. - [x] Any fixed [CI baseline](https://github.com/microsoft/vcpkg/blob/master/scripts/ci.baseline.txt) entries are removed from that file. - [x] Any patches that are no longer applied are deleted from the port's directory. - [x] The version database is fixed by rerunning `./vcpkg x-add-version --all` and committing the result. - [x] Only one version is added to each modified port's versions file. This PR updates the `opengl-registry` and `egl-registry` ports to the latest version. In addition both ports have broken copyright information as both repositories are using individual licenses for each file. I tried to fix this by including a vendored copyright file for the `egl-registry` port. For `opengl-registry` I have just included a note that all files are individually licensed. A proper fix for this seems to be already worked on in #28644. 2024-02-22 01:32:54 +08:00			The files installed by the `opengl-registry` port are using different licenses.
			`Each file defines its license in a comment at the top of the file.`