added windows version of vpcd driver

based on Fabio Ottavi's UMDF Driver for a Virtual Smart Card Reader, see
http://www.codeproject.com/Articles/134010/An-UMDF-Driver-for-a-Virtual-Smart-Card-Reader

virtualsmartcard/win32/vpcd/memory.h

@@ -0,0 +1,9 @@
+#pragma once
+#include "internal.h"
+
+
+bool getBuffer(IWDFIoRequest *pRequest, BYTE **buffer, SIZE_T *bufferLen);
+void completeWithString(IWDFIoRequest* pRequest,char *result,int outSize);
+void completeWithBuffer(IWDFIoRequest* pRequest,BYTE *result,int inSize);
+void completeWithInteger(IWDFIoRequest* pRequest,DWORD result);
+bool getInteger(IWDFIoRequest *pRequest, DWORD *integer);