[llama-cpp] Create a new port

[luncliff]

Changes

Initial support for new port llama-cpp

References

• https://github.com/ggerganov/llama.cpp/releases/tag/b1273

Triplet Support

• x64-windows
• x64-osx

Configuration

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

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