Dry run for nodecloud gcp plugin

[raju249]

After the new architecture is implemented, we have to check for the working of nodecloud gcp plugin whether or not it works as expected. Any bugs encountered, we will have to fix that.

[jmularski]

Tested it out with example tests in nodecloud. Google object storage seems to work for me, was not able to test google-dns since I don't have free domain to test on (don't want to experience on my prod domains). Google compute outputed completely nothing, and I have one compute instance already created. After I created datastore instance, it works great, and it seems easy to use. I still think you should enter some README.md with developer workflow (referring to issue #2 ), and switch from massive google-cloud depreciated library, to @google-cloud/xxxxx (fe @google-cloud/storage) libraries, that have ongoing support.