PR Summary

Add Linux VSTS CI

• Update Start-PSPester and Start-PSxUnit to upload test results when running in VSTS
• Disable tests which require non-root using when running as root
• remove verifications in Test-Connection tests which verify buggy behavior
• Skip tests which don't behave correctly in VSTS (due to running in a container?)
  - Test-Connection - Several tests in the Test-Connection don't work when running in a container (and therefore VSTS) #7528
  - Set-Date - Tests for Set-Date fail in VSTS Linux with Operation not permitted #7529

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Change is not breaking
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
• This PR is ready to merge and is not Work in Progress.
  • If the PR is work in progress, please add the prefix WIP: to the beginning of the title and remove the prefix when the PR is ready.
• User-facing changes
  • Not Applicable
  • OR
  • User-facing Documentation needed
    • Issue filed - Issue link:
• Testing - New and feature
  • Not Applicable or can only be tested interactively
  • OR
  • Make sure you've added a new test if existing tests do not effectively test the code changed
    • Add [feature] if the change is significant or affects feature tests