TeamCity renderer doesn't use ##teamcity[testSuiteStarted/Finished] or #teamcity[testStarted/Finished]

[timbavtbc]

Xcbeautify only seems to use these TeamCity directives:

    ##teamcity[message text='\(text)' errorDetails='\(details.teamCityEscaped())' status='NORMAL']
    ##teamcity[buildProblem description='\(filePath)']
    ##teamcity[message text='\(text)' errorDetails='\(details.teamCityEscaped())' status='ERROR']
    ##teamcity[message text='\([text, details.teamCityEscaped()].joined(separator: "|n"))' status='WARNING']

this despite TeamCity providing testSuiteStarted/Finished, testStarted/Finished, and testStdOut/Err to handle output.

https://www.jetbrains.com/help/teamcity/service-messages.html#Supported+Test+ServiceMessages

Is there a particular reason those aren't invoked, or does the renderer just pre-date them?

[timbavtbc]

As I say in the pull request, this should probably be a secondary teamcity renderer, for folks who want the ##teamcity[message] based one, instead of the test directives, because if a junit file supplies test results, it'll end up with duplicates in the summary.