include what you use in betterRenderer

Its sources reached the standard library through the project headers they
included; those are imports now. 178 headers across 56 files, plus 18 C
library headers elsewhere for memcpy/printf and friends. MSVC's STL does
not supply these transitively the way libstdc++ does.

betterRenderer/renderer/source/nvrenderer_imgui.h

@@ -2,6 +2,7 @@
 
 #include "imgui_nvrhi.h"
 #include "nvrenderer/nvrenderer.h"
+#include <memory>
 
 class NvImguiRenderer : public imgui_renderer {
   virtual bool Init() override;