#51 Stats of performance

[Carlos Gacimartín]

For testing improvements, configs configurations, new drivers and other features, i would like just a line in the output of the binary with the size in MB of the info processed.
In example, now it displays:
(...)
Total elaboration time: 30s
(...)

If i upload a pcap file of 15MB, i would like:
Total elaboration time: 30s, average: 0'5MB/seg.

(this if for, in most cases, live capture).