Dependency on other library

[itsarbit]

Hey,

Currently, test library has a dependency on github.com/nats-io/gnatsd, which should not be a required third party dependency. Actually, it is imported in gnatsd.go. I believe it would be better to remove this dependency.

Thanks.

[hsinhoyeh]

I see, that makes sense as well.
we can organize them into subpackage, like

csigo/test/gnatsd
csigo/test/hbase