[onnx] Install proto, proto3 files

[luncliff]

Changes

• Help [onnx] Update to 1.16.0 #212

References

• [onnx] Update to 1.16.0 #212

Triplet Support

• x64-windows
• x64-osx
• x64-linux

Configuration

"vcpkg-configuration.json" changes for the release.

{
    "registries": [
        {
            "kind": "git",
            "repository": "https://github.com/luncliff/vcpkg-registry",
            "packages": [
                "onnx"
            ],
            "baseline": "..."
        }
    ]
}