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/shaders_vulkan.cpp

@@ -2,6 +2,7 @@
 
 #include "nvrenderer_vulkan.h"
 #include <queue>
+#include <string>
 
 #if LIBMANUL_WITH_VULKAN