put every include before every import

A header first pulled in through an imported module's global module
fragment leaves no include guard in the importing unit - macros do not
cross a module boundary - so a later textual include parses it again and
MSVC rejects the redefinition. Redoes the betterRenderer sweep with
placement that stays out of #if blocks, which is where the previous one
dropped <fstream> and broke nvrenderer_d3d12.cpp.

betterRenderer/renderer/include/nvrenderer/quadtree.h

@@ -3,11 +3,11 @@
 #include <array>
 #include <memory>
 #include <vector>
-import eu07.glm;
-#include <cstdint>
 #include <cstddef>
 #include <limits>
+#include <cstdint>
 
+import eu07.glm;
 struct QuadTreeLeave {
   QuadTreeLeave(const glm::dvec3& origin, const glm::dvec3& extent,
                 uint32_t index)