VFPU: Some micro-optimizations. Don't fall back to interpreter path for vexp/vlog/vrexp.

Windows/MainWindow.cpp

@@ -87,6 +87,7 @@
 #define MOUSEEVENTF_FROMTOUCH_NOPEN 0xFF515780 //http://msdn.microsoft.com/en-us/library/windows/desktop/ms703320(v=vs.85).aspx
 #define MOUSEEVENTF_MASK_PLUS_PENTOUCH 0xFFFFFF80
 
+// See https://github.com/unknownbrackets/verysleepy/commit/fc1b1b3bd6081fae3566cdb542d896e413238b71
 int verysleepy__useSendMessage = 1;
 
 const UINT WM_VERYSLEEPY_MSG = WM_APP + 0x3117;