rib: add route cost to readvertise functionality

This commit adds the cost property (obtained from RIB) to outbound
readvertisements to NLSR.

Change-Id: Idb2e1780dfe1b57f95cfdbb2471b27f832d2671a
diff --git a/daemon/rib/readvertise/readvertise-policy.hpp b/daemon/rib/readvertise/readvertise-policy.hpp
index 94d178f..d0d36e5 100644
--- a/daemon/rib/readvertise/readvertise-policy.hpp
+++ b/daemon/rib/readvertise/readvertise-policy.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022,  Regents of the University of California,
+ * Copyright (c) 2014-2025,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -37,6 +37,7 @@
 struct ReadvertiseAction
 {
   Name prefix; ///< the prefix that should be readvertised
+  uint64_t cost; ///< route cost
   ndn::security::SigningInfo signer; ///< credentials for command signing
 };