net: add nLastBlockTime/TXTime to CNodeStats, CNode::copyStats

src/net.cpp

@@ -530,6 +530,8 @@ void CNode::copyStats(CNodeStats &stats, const std::vector<bool> &m_asmap)
     }
     X(nLastSend);
     X(nLastRecv);
+    X(nLastTXTime);
+    X(nLastBlockTime);
     X(nTimeConnected);
     X(nTimeOffset);
     stats.addrName = GetAddrName();

src/net.h

@@ -619,6 +619,8 @@ public:
     bool fRelayTxes;
     int64_t nLastSend;
     int64_t nLastRecv;
+    int64_t nLastTXTime;
+    int64_t nLastBlockTime;
     int64_t nTimeConnected;
     int64_t nTimeOffset;
     std::string addrName;