Create zip file artifact of VSO build step

Author: Oren Novotny

appveyor.yml

@@ -24,6 +24,9 @@ build_script:
   - cmd: 7z a "GitVersion_%GitVersion_NuGetVersion%.zip" .\build\NuGetCommandLineBuild\Tools\*.*
   - cmd: appveyor PushArtifact "GitVersion_%GitVersion_NuGetVersion%.zip"
 
+  - cmd: 7z a "GitVersionVsoBuildStep_%GitVersion_NuGetVersion%.zip" .\GitVersionVsoTaskBuild\*.*
+  - cmd: appveyor PushArtifact "GitVersionVsoBuildStep_%GitVersion_NuGetVersion%.zip"
+
 test_script:
   - nunit-console "src\GitVersionTask.Tests\bin\%CONFIGURATION%\GitVersionTask.Tests.dll" "src\GitVersionExe.Tests\bin\%CONFIGURATION%\GitVersionExe.Tests.dll" "src\GitVersionCore.Tests\bin\%CONFIGURATION%\GitVersionCore.Tests.dll" /noshadow