added a subset of Crypto++ 5.6.0 with 48% faster ASM SHA-256, combined speedup 2.5x faster vs 0.3.3, thanks BlackEye for figuring out the alignment problem

cryptopp/stdcpp.h

@@ -0,0 +1,27 @@
+#ifndef CRYPTOPP_STDCPP_H
+#define CRYPTOPP_STDCPP_H
+
+#include <stddef.h>
+#include <assert.h>
+#include <limits.h>
+#include <memory>
+#include <string>
+#include <exception>
+#include <typeinfo>
+
+
+#ifdef _MSC_VER
+#include <string.h>	// CodeWarrior doesn't have memory.h
+#include <algorithm>
+#include <map>
+#include <vector>
+
+// re-disable this
+#pragma warning(disable: 4231)
+#endif
+
+#if defined(_MSC_VER) && defined(_CRTAPI1)
+#define CRYPTOPP_MSVCRT6
+#endif
+
+#endif