Fix bug where some messages where lost because of fragmentation
There's no state parameter to function get_msg_parser()
Do not edit the content of what we want to print while debuging !
Change session tracking structure format

We used to track sessions TCP dialog using an array: 0 for frontend data
and properties, 1 for backend ones. This patch change this to use a hash
instead of this array using keys 'F' and 'B' for each side of the
communication. This will help to track properties globally to the
session.
Review comment and documentation of code and force hashref %state in functions og phShark::protocol_3