feat: add d4r inference engines and Windows parity tooling

Add native K/M/RR inference engines, HIP kernels, replay and validation
harnesses, and Windows DLSS setup and runtime support. Include GPU
profiling tools, build and packaging scripts, platform integration
patches, and implementation documentation.

scripts/windows/README-M11.md

@@ -0,0 +1,10 @@
+# M11 historical Windows scripts
+
+The source archive's native-Windows M11 scripts are under
+[`../../windows/m11/tools/`](../../windows/m11/tools/) and its shim build scripts
+under [`../../windows/m11/src/`](../../windows/m11/src/).
+
+They deliberately retain their original **internal** layout because many derive
+paths from `$PSScriptRoot`. This pointer does not imply they are interchangeable
+with the mainline `scripts/windows/` build and release tooling. See
+[`../../docs/windows-m11.md`](../../docs/windows-m11.md).