init.ps1 optional copying of package data for our manager.

Part of 9bb2cd3

tools/init.ps1

@@ -3,5 +3,16 @@ param($installPath, $toolsPath, $package, $project)
 $manager = "DllExport.bat"
 Copy-Item "$installPath\\$manager" "$PWD" -Force
 
+$pdir = "$PWD\\packages\\DllExport." + $package.Version
+if(!(Test-Path -Path $pdir)) {
+    Get-ChildItem -Path $installPath | ForEach-Object {
+        if($_.PSIsContainer) {
+            # without this some files in subdirs can be copied in root folder: https://github.com/3F/coreclr/blob/4fde65a5695d8d4c2f73959e71fb38357ae02a28/pack.ps1
+            $null = New-Item -ItemType Directory -Force -Path ($pdir + '\\' + $_.Name)
+        }
+        Copy-Item $_.fullname $pdir -Recurse -Force
+    }
+}
+
 $project.Save($project.FullPath)
 Start-Process -FilePath ".\\$manager" -WorkingDirectory "$PWD"