Plugin support

[pepsi]

(Suggestion, im not sure how to add the label)
Im not experienced with go at all, but I suggest getting a good plugin system from the start.
After a little googling I came across this , which might be good.

[ToasterKTN]

The Plugin Stuff in go is not really good atm.
I tried many ways, and allways ended up with pipes to other processes or rest calls.
I suggest you check out io.Pipe() and exec.Command() and start the plugin as exec and pipe input data into the executable and receive answers from the executable in a predefined format.

[tboerger]

The best bet would be the go plugin definition by hashicorp, it's also used in famous tools like terraform and packer.