fix compilation with MINGW

Maximilien Siavelis

2018-01-05 17d71d9ef8adad095b8b06182bc1febca02899d0

 src/tools/base_lib/win/CryptoHelperWindows.h

@@ -27,6 +27,7 @@
   HCRYPTPROV m_hCryptProv;

   //   Handle to the cryptography key.

   HCRYPTKEY m_hCryptKey;

   void printHash(HCRYPTHASH* hHash) const;

public:

   CryptoHelperWindows();