Daily update on 20250721-223448 by Nitload Youmu. Additional Message : Rename StgSHarp.C to StgSharp.Native. Add SDL to repo.

Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>

StgSharp.Native/sdl-src/render/gpu/shaders/build-shaders.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -e
+
+make-header() {
+    xxd -i "$1" | sed \
+        -e 's/^unsigned /const unsigned /g' \
+        -e 's,^const,static const,' \
+        > "$1.h"
+}
+
+# Requires shadercross CLI installed from SDL_shadercross
+for filename in *.hlsl; do
+    if [ -f "$filename" ]; then
+        shadercross "$filename" -o "${filename/.hlsl/.spv}"
+        make-header "${filename/.hlsl/.spv}"
+        shadercross "$filename" -o "${filename/.hlsl/.msl}"
+        make-header "${filename/.hlsl/.msl}"
+        shadercross "$filename" -o "${filename/.hlsl/.dxil}"
+        make-header "${filename/.hlsl/.dxil}"
+    fi
+done
+
+rm -f *.spv *.msl *.dxil