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/gbuffer.h

@@ -1,6 +1,8 @@
 #pragma once
 
 #include <nvrhi/nvrhi.h>
+#include <cstdint>
+#include <vector>
 
 struct NvGbuffer {
   NvGbuffer(class NvRenderer* renderer);