[net] Added SetSocketNoDelay() utility function

src/netbase.h

@@ -59,6 +59,8 @@ std::string NetworkErrorString(int err);
 bool CloseSocket(SOCKET& hSocket);
 /** Disable or enable blocking-mode for a socket */
 bool SetSocketNonBlocking(SOCKET& hSocket, bool fNonBlocking);
+/** Set the TCP_NODELAY flag on a socket */
+bool SetSocketNoDelay(SOCKET& hSocket);
 /**
  * Convert milliseconds to a struct timeval for e.g. select.
  */