wip: Initial import of xsv

[Michael-John Turner <mj%mjturner.net@localhost>]

Hi all,

I've just imported xsv[1] v0.13 into wip:
"xsv is a command line program for indexing, slicing, analyzing, splitting
and joining CSV files."

Hopefully this is a lot cleaner than my last Rust package :) As always,
comments welcome.

[1] https://github.com/BurntSushi/xsv

Cheers, MJ

--
Michael-John Turner * mj%mjturner.net@localhost * http://mjturner.net/