pcap-log: add option to honor pass rules

Add option (disabled by default) to honor pass rules. This means that
when a pass rule matches in a flow, it's packets are no longer stored
by the pcap-log module.

Prscript:
- PR build: https://buildbot.openinfosecfoundation.org/builders/inliniac/builds/2
- PR pcaps: https://buildbot.openinfosecfoundation.org/builders/inliniac-pcap/builds/2