Add API to upload .trx files
standard .net test runners can produce .trx files e.g.
vstest.console.exe /logger:trx foo.dll
dotnet vstest --logger:trx foo.dll
These are just XML files. We currently have to parse these xml files and perform hundreds of individual uploads, waiting 60 seconds every time the server throttles with HTTP 429
It would be better if .trx files could just be uploaded to practitest to produce a run of a test set, and the parsing was done on the server.