directory re-organization (keeps the old build system)

there is no internal modification of any file in this commit

files are moved into directories according to established standards in
sourcecode distribution; these directories contain:

 src - Files that are used in constructing the executable binaries,
       but are not installed.

 doc - Files in HTML and text format that document usage, quirks of
       the implementation, and contributor checklists.

 locale - Files that contain human language translation of strings
          used in the program

 contrib - Files contributed from distributions or other third party
 	   implementing scripts and auxiliary programs

src/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