Migrating all test projects (#4668)

* WIP migrate tests

* WIP fixing more tests

* WIP fix test build break

* Test results files are now trx

* Get CI to pass until we get an xunit xml logger

* Added DotNetTestPJ since that was needed for one test

* Fix build break

* Forgot to add DotNetTestPJ as a build task

* Need to restore project.json for the project used in ubuntu test

* Restore PJ for ubuntu test

* Switch the Ubuntu test to csproj based

test/EndToEnd/GivenDotNetUsesMSBuild.cs

@@ -10,10 +10,6 @@ namespace Microsoft.DotNet.Tests.EndToEnd
 {
     public class GivenDotNetUsesMSBuild : TestBase
     {
-        public static void Main() 
-        {
-        } 
-
         [Fact]
         public void ItCanNewRestoreBuildRunCleanMSBuildProject()
         {