feature: Implement Session monitoring

TODO:

• Figure out timestamp, do we have to keep track of the time between two consecutive messages ourselves?
• Figure out why system bus monitoring failshttps://gitlab.gnome.org/msandova/bustle/-/issues/3
• Allow stopping the recording
• Allow exporting the model as a pcap file https://gitlab.gnome.org/msandova/bustle/-/issues/2
• Recording a specific address https://gitlab.gnome.org/msandova/bustle/-/issues/1