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/auto_exposure.cpp

@@ -5,6 +5,7 @@
 #include "config.h"
 #include "nvrenderer/nvrenderer.h"
 #include "nvrendererbackend.h"
+#include <cstdint>
 
 MaAutoExposure::MaAutoExposure(NvRenderer *renderer)
     : MaResourceRegistry(renderer), m_backend(renderer->GetBackend()) {}