[release/3.0.100-preview9] Update dependencies from aspnet/AspNetCore (#4654)

* Update dependencies from https://github.com/aspnet/AspNetCore build 20190907.1

- Microsoft.AspNetCore.DeveloperCertificates.XPlat - 3.0.0-rc1.19457.1
- Microsoft.AspNetCore.App.Runtime.win-x64 - 3.0.0-rc1.19457.1
- Microsoft.AspNetCore.App.Ref - 3.0.0-rc1.19457.1
- dotnet-watch - 3.0.0-rc1.19457.1
- dotnet-user-secrets - 3.0.0-rc1.19457.1
- dotnet-dev-certs - 3.0.0-rc1.19457.1

* Update dependencies from https://github.com/aspnet/AspNetCore build 20190907.2

- Microsoft.AspNetCore.DeveloperCertificates.XPlat - 3.0.0-rc1.19457.2
- Microsoft.AspNetCore.App.Runtime.win-x64 - 3.0.0-rc1.19457.2
- Microsoft.AspNetCore.App.Ref - 3.0.0-rc1.19457.2
- dotnet-watch - 3.0.0-rc1.19457.2
- dotnet-user-secrets - 3.0.0-rc1.19457.2
- dotnet-dev-certs - 3.0.0-rc1.19457.2

* Update dependencies from https://github.com/aspnet/AspNetCore build 20190907.4

- Microsoft.AspNetCore.DeveloperCertificates.XPlat - 3.0.0-rc1.19457.4
- Microsoft.AspNetCore.App.Runtime.win-x64 - 3.0.0-rc1.19457.4
- Microsoft.AspNetCore.App.Ref - 3.0.0-rc1.19457.4
- dotnet-watch - 3.0.0-rc1.19457.4
- dotnet-user-secrets - 3.0.0-rc1.19457.4
- dotnet-dev-certs - 3.0.0-rc1.19457.4

* Skip VB template tests

test/SdkTests/TestConfig.xml

@@ -45,6 +45,11 @@
   </TestList>
   
   <SkippedTests>
+	<Method Name="Microsoft.NET.Build.Tests.GivenThatWeWantToUseVB.It_builds_a_vb_wpf_app"
+            Skip="true"
+            Issue="https://github.com/dotnet/wpf/issues/1734"
+            Reason="VB templates removed from wpf"/>
+
     <Method Name="Microsoft.NET.Publish.Tests.GivenThatWeWantToPublishAHelloWorldProject.It_publishes_portable_apps_to_the_publish_folder_and_the_app_should_run"
             Skip="true"
             Issue="https://github.com/dotnet/sdk/pull/3574"