Initial empty bucket

[axos88]

To more easily use this for integration tests via docker-compose, I'd like to ask for a command-line option that would create an initial, empty bucket.

[kevinrathgeber]

Somewhat related, I'm trying to create buckets if they don't exist as part of my init.sh via docker-compose and I'm running into issues. We're using Go and the client for GCS requires a project name but it doesn't seem to matter?