fw: add strategy notification for Interests dropped by LpReliability

add dropped Interest counter to faces

refs #3823

Change-Id: I9910b66932d74383203e8f3732bb45cade83b972
diff --git a/daemon/fw/strategy.cpp b/daemon/fw/strategy.cpp
index fea2164..284b1f2 100644
--- a/daemon/fw/strategy.cpp
+++ b/daemon/fw/strategy.cpp
@@ -171,6 +171,12 @@
 }
 
 void
+Strategy::onDroppedInterest(const Face& outFace, const Interest& interest)
+{
+  NFD_LOG_DEBUG("onDroppedInterest outFace=" << outFace.getId() << " name=" << interest.getName());
+}
+
+void
 Strategy::sendNacks(const shared_ptr<pit::Entry>& pitEntry, const lp::NackHeader& header,
                     std::initializer_list<const Face*> exceptFaces)
 {