Added golang starter code

[pratikluitel]

Fixes #23

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if necessary)
• I have performed adequate tests that prove my fix is effective or that my feature works

Proposed Changes

• Added golang starter code

[pSapien]

@pratikluitel Did you check in the sandbox?

[pratikluitel]

@pratikluitel Did you check in the sandbox?

@pSapien I did. Works fine. As of the latest commit, Docker submission works swimmingly too.

[pSapien]

@pratikluitel Did you check in the sandbox?

@pSapien I did. Works fine. As of the latest commit, Docker submission works swimmingly too.

Thanks for the PR.