vcpkg manifest mode dependencies not filtered by platform

[linquize]

Currently, vcpkg manifest mode dependencies are not filtered by platform.

Line 761 of toolsrc/src/vcpkg/install.cpp

                for (auto& dep : (*val)->core_paragraph->dependencies)
                {
                    specs.push_back(FullPackageSpec{
                        {std::move(dep.name), default_triplet},
                        std::move(dep.features),
                    });
                }

It should filter by platform in this code block.

This is my vcpkg.json in my project.

{
  "name": "sshtest",
  "version-string": "dev",
  "dependencies": [
    {
      "name": "libssh",
      "features": ["mbedtls"],
      "platform": "windows"
    }
  ]
}

Run cmake on Linux. Expected libssh is not installed. But actual libssh is still installed.
Run cmake on Windows. Expected libssh is installed. Actual libssh is installed.

[strega-nil]

Fixing this now, thanks @linquize for bringing this to my attention!