Provide the ability to run all test projects using a glob pattern

[dgkanatsios]

Currently, the DotNet test ADO task allows to run test projects using a glob pattern. For example,

 - task: DotNetCoreCLI@2
    displayName: Run tests
    inputs:
      command: 'test'
      projects: 'src/**/*.[Tt]est?(s).csproj'

This will recursively search all folders for files matching this pattern. It would be great if the tool supported this.

PS. There is a workaround to add all test .csproj files to a solution (.sln). However, this increases the execution time, since on retry, the tool will try and search for the failed tests in all .csproj projects in the .sln file.