Send raw packets to a redis

[haegardev]

Add a command line option to send the packets to a redis set. Hence, multiple pcapdjs producers can be run in parallel. The pcapdj consumer can consume the set and send the data to a fifo buffer, zmq feed or other redis server. This feature might be useful in conjunction with the feature described in issue #3.

[CyberTaoFlow]

Would this allow sending the same pcap(s) to multiple fifo's?