[AETHER-599][AETHER-418] Implement FabricPipelineTraceable

Changes supporting fabric traceable implementation.

Moreover, it improves the following:
- Ingress-port parsing
- Fixes several issues in the trace print function
- Adds the print of the dropped hit chains
- Updates onos-dependencies to the latest stable version
  and trellis-control to the latest snapshot.

Change-Id: I278f3c099329f8877501142447637782d6af42c7
diff --git a/pom.xml b/pom.xml
index 6a1b9a9..61f037c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-dependencies</artifactId>
-        <version>2.5.0</version>
+        <version>2.5.1</version>
     </parent>
 
     <groupId>org.onosproject</groupId>