feat: add/googlebatch logging testing

[vsoch]

This PR will add the following:

• an example script to show logs (not added to the executor per problems with the API limit, described in https://github.com/snakemake/snakemake-executor-plugin-googlebatch/issues/14
  • ability for the true test in CI to take environment variables to specify project /region (for easiest local running)
• a missing NOTICE file required for HPCIC work

I'm working on an issue that describes the logging problem, and will be sharing this with Google and will update here after. TBA.

Update: I don't see a solution that I like for logging. It either requires enabling an extra service, or risking hitting an API limit. For now we can easily see status updates in the UI and direct the interested user to this script for dumping a log.

[vsoch]

@johanneskoester I will always need your permission to merge, maybe we can disable that? It's going to slow down development (which I already feel like I've been very slow). OK if you want to keep, but I can't pick up working on this tonight I had planned.