Test cleanup

[bording]

Two changes here. The first is that AcceptanceTests now uses QueueBindings to know what queues to purge, like we were already doing in TransportTests. I tweaked the TransportTests implemenation so that both are consistent.

I also removed some unneeded code from the APIApprovals test, which had the side effect of introducing some whitespace in the approval file.

[bording]

I found that TeamCity has a plugin that should get test reporting for .NET Core, but it seems to be exploding all the tests. I'll figure this out next week.

[bording]

Even after fixing one of the issues with the TeamCity plugin, I was still seeing Could not find a test logger with URI or FriendlyName 'teamcity', so I decided to remove it from this PR, and I'll try again later in a separate PR.

The reason we've had 5 failing tests initially was because by removing the "wipe all queues between tests" logic, we're now hitting #134 for those tests. 😢 The reset broker script was also not working correctly, guaranteeing we'd have leftover messages that would cause the tests to fail.

I've got the reset script working again on the .NET Core build agent, and that seems to have the sequencing correct to not cause a test failure, but #134 is still lurking in those tests.

I'll have to see If I can get the tests changed in Core to ensure we don't have a problem since I don't know of another workaround.