Add option to all tasks to set logging verbosity level

[fourpastmidnight]

Is your feature request related to a problem? Please describe.

Yes. I'm trying to debug why my custom certificate file that I placed in $(Agent.ToolsDirectory)/_jf/security/certs was not seemingly used, resulting in my build to fail.

Describe the solution you'd like to see

Almost all built-in tasks in Azure DevOps server allow one to select the logging level that should be output in the build task to aid in debugging build pipelines.

Describe alternatives you've considered

None, because the facility is plain not available.