[ONOS] PCEP provider changes, added node listeners to topology provider

Change-Id: I98bc6445ee78a8f0bf53f897f0a25f678ec7fc99
diff --git a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientAdapter.java b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientAdapter.java
index daf315a..2babb3a 100644
--- a/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientAdapter.java
+++ b/providers/pcep/tunnel/src/test/java/org/onosproject/provider/pcep/tunnel/impl/PcepClientAdapter.java
@@ -139,4 +139,12 @@
     public ClientCapability capability() {
         return capability;
     }
+
+    @Override
+    public void addNode(PcepClient pc) {
+    }
+
+    @Override
+    public void deleteNode(PccId pccId) {
+    }
 }