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/environment.cpp

@@ -10,6 +10,12 @@
 #include "nvtexture.h"
 import eu07.simulation.simulationenvironment;
 #include "sky.h"
+#include <cstddef>
+#include <cstdint>
+#include <map>
+#include <memory>
+#include <string>
+#include <utility>
 
 int MaEnvironment::GetCurrentSetIndex() {
   if (m_locked_set_index >= 0 && IsReady()) {