migrated to new .slnx format (#290)

Author: Aaronontheweb

Akka.MultiNodeTestRunner.sln

@@ -0,0 +1,15 @@
+<Solution>
+  <Folder Name="/build/">
+    <File Path="build.ps1" />
+    <File Path="coverlet.runsettings" />
+    <File Path="Directory.Build.props" />
+    <File Path="Directory.Packages.props" />
+    <File Path="global.json" />
+    <File Path="README.md" />
+    <File Path="RELEASE_NOTES.md" />
+  </Folder>
+  <Project Path="src/Akka.MultiNode.RemoteHost/Akka.MultiNode.RemoteHost.csproj" />
+  <Project Path="src/Akka.MultiNode.SampleMultiNodeTests/Akka.MultiNode.SampleMultiNodeTests.csproj" />
+  <Project Path="src/Akka.MultiNode.TestAdapter.Tests/Akka.MultiNode.TestAdapter.Tests.csproj" />
+  <Project Path="src/Akka.MultiNode.TestAdapter/Akka.MultiNode.TestAdapter.csproj" />
+</Solution>

Akka.MultiNodeTestRunner.slnx

@@ -66,7 +66,7 @@ jobs:
         displayName: 'Publish Coverage Report'
         condition: and(always(), eq(variables['Agent.OS'], 'Windows_NT'))
         continueOnError: true
-        artifact: 'CoverageReports'
+        artifact: 'CoverageReports-$(Build.BuildId)'
 
       - script: dotnet pack -c Release -o $(Build.ArtifactStagingDirectory)/nuget
         displayName: 'Create packages'
@@ -75,7 +75,7 @@ jobs:
         displayName: 'Publish artifacts'
         inputs:
           PathtoPublish: '$(Build.ArtifactStagingDirectory)/nuget'
-          ArtifactName: 'nuget'
+          ArtifactName: 'nuget-$(Build.BuildId)'
           publishLocation: 'Container'
 
       - script: 'echo 1>&2'