Update pflua deps

* deps/pflua: Update
Add bench.lua for simple benchmarking

* src/bench.lua: New file.
Add csv2 makefile target

* src/ts/pcaps/igalia/one-gigabyte.pcap.tests: New file.
* src/Makefile: Add csv2 makefile target.

* src/bench.lua: Add iterations arg, and flush IO so we can see things.
Uncompress data file if necessary
Merge pull request #1 from dpino/uncompress-data-file-if-necessary

Uncompress data file if necessary
Inline savefile traversal

* src/bench.lua: Inline the savefile traversal.  Goes up to 20MPPS!