[master] Update dependencies from dotnet/arcade (#2667)

* Update dependencies from https://github.com/dotnet/arcade build 20190626.44

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19326.44

* Add missing feed

* Use PackageDownload

* Update dependencies from https://github.com/dotnet/arcade build 20190627.39

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19327.39

* Use new apphost package and stop downloading extra packages

eng/common/sdl/extract-artifact-packages.ps1

@@ -0,0 +1,70 @@
+param(
+  [Parameter(Mandatory=$true)][string] $InputPath,              # Full path to directory where artifact packages are stored
+  [Parameter(Mandatory=$true)][string] $ExtractPath            # Full path to directory where the packages will be extracted
+)
+
+$ErrorActionPreference = "Stop"
+Set-StrictMode -Version 2.0
+$ExtractPackage = {
+  param( 
+    [string] $PackagePath                                 # Full path to a NuGet package
+  )
+  
+  if (!(Test-Path $PackagePath)) {
+    Write-PipelineTaskError "Input file does not exist: $PackagePath"
+    ExitWithExitCode 1
+  }
+  
+  $RelevantExtensions = @(".dll", ".exe", ".pdb")
+  Write-Host -NoNewLine "Extracting" ([System.IO.Path]::GetFileName($PackagePath)) "... "
+
+  $PackageId = [System.IO.Path]::GetFileNameWithoutExtension($PackagePath)
+  $ExtractPath = Join-Path -Path $using:ExtractPath -ChildPath $PackageId
+
+  Add-Type -AssemblyName System.IO.Compression.FileSystem
+
+  [System.IO.Directory]::CreateDirectory($ExtractPath);
+
+  try {
+    $zip = [System.IO.Compression.ZipFile]::OpenRead($PackagePath)
+
+    $zip.Entries | 
+    Where-Object {$RelevantExtensions -contains [System.IO.Path]::GetExtension($_.Name)} |
+      ForEach-Object {
+          $TargetFile = Join-Path -Path $ExtractPath -ChildPath $_.Name
+
+          [System.IO.Compression.ZipFileExtensions]::ExtractToFile($_, $TargetFile, $true)
+        }
+  }
+  catch {
+  
+  }
+  finally {
+    $zip.Dispose() 
+  }
+ }
+ function ExtractArtifacts {
+  if (!(Test-Path $InputPath)) {
+    Write-Host "Input Path does not exist: $InputPath"
+    ExitWithExitCode 0
+  }
+  $Jobs = @()
+  Get-ChildItem "$InputPath\*.nupkg" |
+    ForEach-Object {
+      $Jobs += Start-Job -ScriptBlock $ExtractPackage -ArgumentList $_.FullName
+    }
+
+  foreach ($Job in $Jobs) {
+    Wait-Job -Id $Job.Id | Receive-Job
+  }
+}
+
+try {
+  Measure-Command { ExtractArtifacts }
+}
+catch {
+  Write-Host $_
+  Write-Host $_.Exception
+  Write-Host $_.ScriptStackTrace
+  ExitWithExitCode 1
+}