record pcap files in shadow client test

shadow/client/run.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 rm -rf shadow.data/
-shadow --template-directory shadow.data.template shadow.yaml > shadow.log ;
+shadow --pcap-enabled true --template-directory shadow.data.template shadow.yaml > shadow.log ;
 ret=$?
 
 declare -A groups