Initial support for Irish (ga)

[krisgesling]

Hi Jim, apologies my inbox is terrible at the moment and it's taken a moment to get to your CLA request. That should now be in your inbox.

Given it's a very small change we can accept it here, however if you haven't seen it already check out translate.mycroft.ai

This is where we manage all the translations for Mycroft and anything in that platform will overwrite what's in the repo.

Thanks for helping to make Mycroft better for more people :)