Add Go support for meta-examples

[vigsterkr]

feature/golang branch has the initial support for a Go interface of shogun. it'd be great to have Go support added to our meta-example generator.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[gf712]

this could be a cool GSoC project