clarify statistics output

[lmb]

xdpcap currently creates the following output when capturing into a file:

aborted: 0/0	drop: 0/0	pass: 255/211	tx: 0/0	(received/matched packets)
Error: lost 10 packets
Error: lost 4 packets

First, it's not entirely clear to me what the distinction between received / matched is. Maybe it would be nicer if there was a separate "all" column that just counted the number of packets without filtering and just showing the number of matched packets per action:

aborted: 0	drop: 0	pass: 211	tx: 0	total: 255 (of which 211 matched)

Second, the message for lost packets can be a bit noisy. Maybe that become a column as well:

aborted: 0	drop: 0	pass: 211	tx: 0	lost: 14	total: 255 (of which 211 matched)

Another option would be to only print the number of lost packets when exiting via Ctrl-C, similar to tcpdump.