util: add script to generate Goodwill json from thrift
util: add script to generate Goodwill json from thrift

Usage:

    ruby thrift2json.rb netflow.thrift

Signed-off-by: Pierre-Alexandre Meyer <ff019a5748a52b5641624af88a54a2f0e46a9fb5@ning.com>

pierre/goodwill,pierre/goodwill,pierre/goodwill