powershell makes it way easier to provide additional options, so in test.cmd we have -smoke, -compatibility etc., add guide on running single tests on linux to contributing.md because figuring it out what needs to escape and how is terribly hard.

./test.sh --integrationTest --property:TestRunnerAdditionalArguments="--filter:WhenTestHostProcessExitsBecauseTheTargetedRuntimeIsNoFoundThenTheMessageIsCapturedFromTheErrorOutput" -tl:off --property: Test=false