Cleanup: Move several blenkernel headers to C++

Mostly focus on areas where we're already using C++ features,
where combining C and C++ APIs is getting in the way.

Pull Request: https://projects.blender.org/blender/blender/pulls/114972

source/blender/python/intern/bpy_interface_run.cc

@@ -17,7 +17,7 @@
 #include "BLI_path_util.h"
 #include "BLI_string.h"
 
-#include "BKE_context.h"
+#include "BKE_context.hh"
 #include "BKE_main.h"
 #include "BKE_report.h"
 #include "BKE_text.h"