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/ma_dds.cpp

@@ -2,6 +2,10 @@
 #include "nvtexture.h"
 
 #include <sstream>
+#include <cstddef>
+#include <cstdint>
+#include <ios>
+#include <string>
 
 bool NvTexture::LoadDDS(std::string &data, int size_bias) {
   ddspp::Descriptor desc{};