testS3Connection should have verbose option

The testS3Connection utility should have a verbose option the displays all communication between the two servers.

logging facility should be added to libmarias3 under the boolean flag
When you start to add changes, first update libmarias3 submodule of columnstore to head of master branch, and when done create the PR into https://github.com/mariadb-corporation/libmarias3 and when accepted
first, then create the PR with columnstore changes and the submodule updated with your changes

as was discussed with serg all logging should be put into stderr