ui: use a single entrypoint script to launch various tools
There should be a single command that can launch various tools and scripts that are part of the project. E.g.:
$ shotgun replay
$ shotgun filter-dnsq
$ shotgun plot-latency
I think this could be achieved with a simple wrapper script that just looks for lua/python scripts in a few well-known locations and just passes the arguments and execution to them if found.
This seems to be a pre-requisite before the project can be reasonably packaged (which will probably happen eventually, once dnssim becomes a separate module outside dnsjit).