Enormous cleanup of RippleAddress et. al. into ripple_data

Start cleanup into ripple_data, split out some hash_value() instances
Tidy up CBigNum into ripple_data, moving definitions to .cpp
Split and clean up base58 stuff
Remove unused files from VS2012 project
Clean up some bignum stuff and remove unused files
Partial cleanup of RFC1751
Enormous cleanup with RippleAddress and related, into ripple_data
Remove unused VS project files
Move ECIES stuff into CKey

modules/ripple_basics/utility/ripple_RandomNumbers.cpp

@@ -106,3 +106,77 @@ bool AddSystemEntropy()
 }
 
 #endif
+
+//------------------------------------------------------------------------------
+
+//
+// "Never go to sea with two chronometers; take one or three."
+// Our three time sources are:
+//  - System clock
+//  - Median of other nodes's clocks
+//  - The user (asking the user to fix the system clock if the first two disagree)
+//
+
+void RandAddSeedPerfmon()
+{
+	// VFALCO: This is how we simulate local functions
+	struct
+	{
+		int64 operator() () const
+		{
+			return time (NULL);
+		}
+	} GetTime;
+
+	struct
+	{
+		void operator() ()
+		{
+			struct
+			{
+				// VFALCO: TODO, clean this up
+				int64 operator() () const
+				{
+					int64 nCounter = 0;
+#if defined(WIN32) || defined(WIN64)
+					QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);
+#else
+					timeval t;
+					gettimeofday(&t, NULL);
+					nCounter = t.tv_sec * 1000000 + t.tv_usec;
+#endif
+					return nCounter;
+				}
+			} GetPerformanceCounter;
+
+			// Seed with CPU performance counter
+			int64 nCounter = GetPerformanceCounter();
+			RAND_add(&nCounter, sizeof(nCounter), 1.5);
+			memset(&nCounter, 0, sizeof(nCounter));
+		}
+	} RandAddSeed;
+
+	RandAddSeed();
+
+	// This can take up to 2 seconds, so only do it every 10 minutes
+	static int64 nLastPerfmon;
+	if (GetTime () < nLastPerfmon + 10 * 60)
+		return;
+	nLastPerfmon = GetTime ();
+
+#ifdef WIN32
+	// Don't need this on Linux, OpenSSL automatically uses /dev/urandom
+	// Seed with the entire set of perfmon data
+	unsigned char pdata[250000];
+	memset(pdata, 0, sizeof(pdata));
+	unsigned long nSize = sizeof(pdata);
+	long ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, pdata, &nSize);
+	RegCloseKey(HKEY_PERFORMANCE_DATA);
+	if (ret == ERROR_SUCCESS)
+	{
+		RAND_add(pdata, nSize, nSize/100.0);
+		memset(pdata, 0, nSize);
+		//printf("%s RandAddSeed() %d bytes\n", DateTimeStrFormat("%x %H:%M", GetTime()).c_str(), nSize);
+	}
+#endif
+}