add wireshark sidecar

[danisla]

Adds a wireshark container sidecar if the appParam: enableWireshark is "true"

Usage

After enabling the appParam and launching a pod:

1. Create a port-forward to the web interface:

   kubectl port-forward -n USER_NAMESPACE POD_NAME 3000:3000

2. Open your browser to localhost:3000 to see and use the wireshark UI.
3. Save your capture to a file like: /tmp/capture.pcapng
4. Copy pcap files out of the container to your local environment:

   kubectl -n USER_NAMESPACE cp -c wireshark POD_NAME:/tmp/capture.pcapng capture.pcapng

NOTE: if you exit wireshark, it will not be restarted automatically, you have to shutdown and launch the pod again.