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/nvrendererbackend.cpp

@@ -2,6 +2,9 @@
 
 import eu07.utilities.logs;
 #include <fmt/format.h>
+#include <cstddef>
+#include <string>
+#include <unordered_map>
 
 void NvRendererMessageCallback::message(nvrhi::MessageSeverity severity,
                                         const char *messageText) {