Move itertools module from the sandbox and into production.
diff --git a/PCbuild/pythoncore.dsp b/PCbuild/pythoncore.dsp
index 5a84506..adcb706 100644
--- a/PCbuild/pythoncore.dsp
+++ b/PCbuild/pythoncore.dsp
@@ -323,6 +323,10 @@
 # End Source File

 # Begin Source File

 

+SOURCE=..\Modules\itertoolsmodule.c

+# End Source File

+# Begin Source File

+

 SOURCE=..\Parser\listnode.c

 # End Source File

 # Begin Source File