Add Powershell copy commands on all platforms.
Add Powershell copy commands on all platforms.

Bug: 1264132
Change-Id: Ie69d34af9a15a1324688bc1c66a42a545c317fda
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3269843
Reviewed-by: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>
Commit-Queue: Danil Somsikov <f16a5ee11618cab93684e694f9aa762d34f02920@chromium.org>

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