COMP: cleanup of surfaceCoarsen/bunnylod

- remove MSWindows components (code and makefiles)

- use cxx, hxx extensions to reduce possible confusion with other
  "list" and "vector" classes

- use C++ versions for C headers

applications/utilities/surface/surfaceCoarsen/surfaceCoarsen.C

@@ -50,7 +50,7 @@ Description
 #include "triFaceList.H"
 
 // From bunnylod
-#include "progmesh.h"
+#include "progmesh.hxx"
 
 using namespace Foam;