added helpful script for running packer in a guest windows machine

this allows us to bypass concourse when developing changes to provisioning

scripts/setup/run_packer_provisioning.ps1

@@ -0,0 +1,38 @@
+#This script will allow you to run changes that start from our macOS host to the guest windows OS that will run the packer provisioning steps
+#this allows us to bypass concourse when developing changes to provisioning
+
+function zipUpPsModules {
+    $source = "C:\working_directory\stemcell-builder\bosh-psmodules\modules"
+    $destination = "C:\working_directory\stemcell-builder\build\bosh-psmodules.zip"
+
+     If(Test-path $destination) {Remove-item $destination}
+    Add-Type -assembly "system.io.compression.filesystem"
+    [io.compression.zipfile]::CreateFromDirectory($Source, $destination)
+}
+
+$env:ADMINISTRATOR_PASSWORD="Password123!"
+$env:OS_VERSION="windows2012R2"
+$env:PRODUCT_KEY="D2N9P-3P6X9-2R39C-7RTCD-MDVJX"
+$env:ORGANIZATION="Pivotal_Dev"
+$env:OWNER="the world"
+$env:VERSION_DIR="../version"
+$env:STEMCELL_DEPS_DIR="../windows-stemcell-dependencies"
+$env:OUTPUT_DIR="../output_dir"
+
+Remove-Item "C:\working_directory\output_dir" -Force -Recurse
+Remove-Item "C:\working_directory\ci" -Force -Recurse
+Copy-Item -Force -Recurse "Z:\workspace\greenhouse-ci\" "C:\working_directory\ci\"
+
+Remove-Item "C:\working_directory\stemcell-builder\lib" -Force -Recurse
+Remove-Item "C:\working_directory\stemcell-builder\bosh-psmodules" -Force -Recurse
+Copy-Item -Force -Recurse "Z:\workspace\bosh-windows-stemcell-builder\lib\" "C:\working_directory\stemcell-builder\lib\"
+Copy-Item -Force -Recurse "Z:\workspace\bosh-windows-stemcell-builder\bosh-psmodules\" "C:\working_directory\stemcell-builder\bosh-psmodules\"
+
+zipUpPsModules
+
+cd "\working_directory"
+
+#.\ci\bosh-windows-stemcell-builder\create-vsphere-vmdk\run.ps1
+
+cd "stemcell-builder"
+packer build -machine-readable -debug -on-error=abort  C:/working_directory/packer.config