Add realtime function to the tool

[verovaleros]

We had an unused feature that is now a feature request:

    parser.add_argument('-R', '--realtime',
                        help='Read the conn.log in real time.',
                        required=False,
                        type=bool,
                        default=False)

[Wapiti08]

I will try to work on that part if it is not that urgent.

[verovaleros]

It's not urgent and we would love the contributions, thank you!

[Wapiti08]

Has the usage of zat been abandoned? I found the dependency on zat and pyod, but no usage for zat. The only overlap of python version is 3.8. Shall I build on top of 3.8 for that? It is more easier to build on top of zat.

[Wapiti08]

I have added the real-time functions. Please have a check to accept commits. Please let me know if there is problem then.