simplewallet: new net_stats command

displays total sent and received bytes

src/wallet/wallet2.cpp

@@ -12969,4 +12969,14 @@ void wallet2::finish_rescan_bc_keep_key_images(uint64_t transfer_height, const c
     m_transfers[it->second].m_key_image_known = true;
   }
 }
+//----------------------------------------------------------------------------------------------------
+uint64_t wallet2::get_bytes_sent() const
+{
+  return m_http_client.get_bytes_sent();
+}
+//----------------------------------------------------------------------------------------------------
+uint64_t wallet2::get_bytes_received() const
+{
+  return m_http_client.get_bytes_received();
+}
 }

src/wallet/wallet2.h

@@ -1258,6 +1258,9 @@ namespace tools
     bool frozen(const crypto::key_image &ki) const;
     bool frozen(const transfer_details &td) const;
 
+    uint64_t get_bytes_sent() const;
+    uint64_t get_bytes_received() const;
+
     // MMS -------------------------------------------------------------------------------------------------
     mms::message_store& get_message_store() { return m_message_store; };
     const mms::message_store& get_message_store() const { return m_message_store; };