Add support for the tshark NDN dissector
Add a Python API for using tshark on Mini-NDN nodes with the NDN dissector.
In order to accomplish this, we will need to modify the config files for Wireshark to allow for running arbitrary scripts as superuser. This is obviously not something that should be default and should most likely be added with explicit confirmation. We will also need to simply install tshark as well as the dissector script.