Implement zilla dump command similar to tcpdump

[bmaidics]

Fix #114

[bmaidics]

What's still needed here:

• Turned out Pcap4j is not working with java 17. I was using java 11 during the development. Another drawback is that it is a wrapper around a native lib. Based on these we should drop the lib, and come up with something
• Couldn't get rid of some Wireshark warnings: previous segment not arrived/dup ack etc.. We need to figure out a way to smartly assign sequence number to packet and the segment types as well.

[jfallows]

Good job making so much progress on this task, @bmaidics. 👍

In general though, the dump command design needs to be more closely aligned with other zilla commands using the ZillaCommandSpi, like ZillaTuneCommand and not so heavily influenced by the command-log internals, which does not implement the same pattern.

Your intention behind the reuse is good, but it seems to be interfering a bit with getting the most natural solution for zilla dump.

I suggest you complete the implementation for zilla dump without any reuse, copying whatever classes you need from command-log such as the layouts, and cleaning up the rest of the implementation to simplify as if it would stand alone and reduce the coupling.

Let's treat this as the next checkpoint.

Then we can re-introduce the dependency from command-log to command-dump to reuse the layout implementations for example, leaving the other internals unmodified.

Later, we might be picking up the layout implementations from the zilla engine, so this approach will evolve naturally to remove them altogether from the individual command projects over time.

[jfallows]

I built this PR locally, and modified zilla-examples tcp.echo example stack.yml to use develop-SNAPSHOT instead of latest image, then followed the README to launch the stack.

I then executed the following to get a shell inside the zilla docker service:

docker exec -it $(docker ps -q -f name=example_zilla) sh

When I then run ./zilla dump -v or ./zilla dump -v -o zilla.pcap the executable exits without producing any output nor error which is unexpected.

[jfallows]

One minor change then we should be able to merge!