JCLOUDS-643: Fix Google and OAuth tests

https://issues.apache.org/jira/browse/JCLOUDS-643

This PR fixes failing live tests and updates static data for expect tests to match.  GCEL images are depracated, so this also update the default template options to use the Debian image as recommended by Google.  Added @Test annotations to several test classes which helps testng control threading, and avoid hitting network quota limits. Several other minor fixes to make unit and live tests run more consistently.
I should have added that adding the annotations and unique names gives the behavior we expect, where test classes with unique testName run in parallel threads (threadCount=5), and methods within those are on a single thread (parallel=tests).