BigQuery

## wip.

### Docs: https://stephenplusplus.github.io/gcloud-node/#/docs/master/bigquery

Carrying on from #262. Just opening this so anyone interested can follow along.

https://github.com/justmoon/node-extend#usage:  Boolean (optional) If set, the merge becomes recursive (i.e. deep copy).

I could document here, but it's kind of all over. :\