Implement SDL platform, windowing and input handling

Source/Engine/Platform/SDL/SDLPlatform.Mac.cpp

@@ -0,0 +1,12 @@
+// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
+
+#if PLATFORM_SDL && PLATFORM_MAC
+
+static_assert(false, "TODO");
+
+void SDLPlatform::SetHighDpiAwarenessEnabled(bool enable)
+{
+    // TODO: This is now called before Platform::Init, ensure the scaling is changed accordingly during Platform::Init (see ApplePlatform::SetHighDpiAwarenessEnabled)
+}
+
+#endif