Fix Windows NVAPI loading the gfx1101 build on every other AMD GPU

0.1.5 shipped one d4r/zluda/nvapi64.dll (the gfx1101 build) for all
targets, and compat_nvapi_path() preferred it over d4r/nvapi/<arch>/.
Nothing on Windows ever set D4R_GPU_ARCH, so on any other GPU NVAPI
failed with "No selected gfx1101 device", NGX CUDA init failed, and
DLSS stayed unavailable (black frames, no OptiScaler upscaler section).

- Select the NVAPI per architecture; never fall back to a shared DLL
  in a multi-target folder, and report a missing build by name.

- The loader and runtime publish D4R_GPU_ARCH and D4R_GPU_LUID for the
  game's adapter, so NVAPI picks the right device with several GPUs.

- nvapi64.dll exports the target it was built for; the runtime refuses
  a mismatch, and the packager and d4r-check read the same marker.

- Release packaging no longer ships d4r/zluda/nvapi64.dll and rejects
  NVAPI builds for the wrong target, without a marker, or missing.

- Move target resolution, device matching and loader choice into
  gpu_selection.h; regression tests cover all 11 targets, bad or
  missing D4R_GPU_ARCH, mixed installs, multi-GPU and missing files.

- d4r-check: accept the FSR keys in the shipped d4r.ini.

scripts/windows/package-windows-quick-test.ps1

@@ -33,7 +33,7 @@ foreach ($gpu in Get-D4RGpuTargets) {
         $relative=$file.path.Replace('\','/')
         if ((Get-FileHash -LiteralPath (Join-Path $source $file.path) -Algorithm SHA256).Hash -ne $file.sha256) { throw "Input file changed: $source/$relative" }
         if ($relative.EndsWith('.hsaco')) { Assert-D4RCodeObjectTarget (Join-Path $source $file.path) $arch }
-        if ($relative -eq 'gpu-target.json' -or $relative -eq 'd4r/_nvngx.dll' -or $relative -eq 'd4r/d4r_gpu_inventory.exe' -or $relative -eq 'd4r/d4r_debug_launcher.exe' -or $relative -eq 'd4r/nvapi/nvapi64.dll' -or
+        if ($relative -eq 'gpu-target.json' -or $relative -eq 'd4r/_nvngx.dll' -or $relative -eq 'd4r/d4r_gpu_inventory.exe' -or $relative -eq 'd4r/d4r_debug_launcher.exe' -or $relative -eq 'd4r/nvapi/nvapi64.dll' -or $relative -eq 'd4r/zluda/nvapi64.dll' -or
             $relative.StartsWith('d4r/native/') -or $relative -like 'd4r/pixel_convert_*.hsaco') {
             $entry=Stage (Join-Path $source $file.path) "files/targets/$arch/$relative"
             $targetFiles+=@{path=$relative; sha256=$entry.sha256; version=$entry.version}