Consolidate CTransaction hex encode/decode into core_io.h, core_{read,write}.cpp

src/core_read.cpp

@@ -0,0 +1,25 @@
+
+#include <vector>
+#include "core_io.h"
+#include "core.h"
+#include "serialize.h"
+
+using namespace std;
+
+bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx)
+{
+    if (!IsHex(strHexTx))
+        return false;
+
+    vector<unsigned char> txData(ParseHex(strHexTx));
+    CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION);
+    try {
+        ssData >> tx;
+    }
+    catch (std::exception &e) {
+        return false;
+    }
+
+    return true;
+}
+