Merge pull request #2278 in SNORT/snort3 from ~SELYSENK/snort3:daq_trace_filtering...

Merge pull request #2278 in SNORT/snort3 from ~SELYSENK/snort3:daq_trace_filtering to master

Squashed commit of the following:

commit 4d5212770eeb623de52709d2e915e7a17d0d4aff
Author: Serhii Lysenko <selysenk@cisco.com>
Date:   Wed Jun 17 07:35:46 2020 -0400

    trace: add support for DAQ trace filtering

    Skip constraints check and print trace messages when DAQ sets
    DAQ_PKT_FLAG_DEBUG_ENABLED flag on a packet.

    trace.constraints.match can be set to false to ignore traces for packets
    without DAQ_PKT_FLAG_DEBUG_ENABLED flag.