[SDFAB-861] Add a testcase to UP4 with PFCP agent

    - Due to only being able to add one application filter per ue
      session with the pfcpsim, created a new testcase to individually
      test the apllication filters from the params file plus the default
      application filter
    - Using a Mock SMF to send messages to the pfcp agent
    - Add a parameter to topo file to use mock_smf or p4rt cli to add
      flows
    - Modify ue ips to work around smf limitations
    - Modify teids for UL and DL to be different. This reduces
      differences between smf and p4rtcli generated flows

Change-Id: I1ba3ef43919dd375f5e5bf54e97f61c09c7323d9
diff --git a/TestON/docker/Dockerfile b/TestON/docker/Dockerfile
index a05f3a8..04450d6 100644
--- a/TestON/docker/Dockerfile
+++ b/TestON/docker/Dockerfile
@@ -34,7 +34,8 @@
     openssh-server \
     curl \
     supervisor \
-    git
+    git \
+    iproute2
 ADD requirements.txt /
 
 COPY --from=trex-builder /output /