GCE updates

The major piece here is poking at the suggestion of providing the google cloud sdk via a docker container and the aliases here are the least irritating implementation I could come up with but they are still kinda slow and also irritating because docker. It works but I may revisit this and look into providing the cloud sdk in the oem using the oem python we already have there, that may get wonky though because that python lacks ssl support. Until then, enjoy this hack.

The smaller but better pieces here are: adding users to the docker group and adding the udev rule so our storage device paths match expectations.