vcpkg repository instructions

Port patches

Create or refresh patch files with git diff --output=<patch-file> ..., not shell output redirection. This preserves exact line endings, including CRLF bytes in patch hunks.

Before opening or drafting a pull request, read .github/pull_request_template.md, determine which checklist applies, and verify each relevant item.
Keep / uncomment applicable checklists in pull request bodies and complete them accurately. Do not make up your own checklists.
When considering opening a pull request, note that vcpkg maintainers review contributions according to .github/skills/shared/review-vcpkg-pr-guide.md. Consult it at that stage to anticipate the evidence and package-readiness checks the review will apply; it is not required for unrelated work.