Robustify ping parser

[jaxxzer]

Add some sort of concurrent parser or recursion to pick up new messages in what the current parser would think is the current messages payload, in the situation of bytes lost in transit.

Also sanity check payload length for fixed-width messages.

[patrickelectric]

While creating a concurrent parser, need to think how to handle the order of the incoming messages, avoiding wrong draws in waterfall or in the graph.