This will basically make the root directory a place for storing the
major telegraf interfaces, which will make telegraf's godoc looks quite
a bit nicer. And make it easier for contributors to lookup the few data
types that they actually care about.
closes#564
Extra fields describing size of all message bodies in the queue.
* message_bytes
* message_bytes_ready
* message_bytes_unacknowledged
* message_bytes_ram
* message_bytes_persistent
More information about each field:
https://www.rabbitmq.com/man/rabbitmqctl.1.man.htmlcloses#577