Add powershell scripts #32697

Job	Run time
test	49m 58s
test_non_bootstrapped	0s
test_scala2_library_tasty	0s
test_windows_fast	39m 41s
community_build_a	56m 39s
MiMa	11m 31s
test_windows_full	0s
community_build_b	1h 31m 26s
community_build_c	1h 4m 49s
test_sbt	17m 4s
build-msi-package	0s
test_java8	0s
build-sdk-package / build	8m 0s
build-chocolatey-package / build	15s
test-chocolatey-package	0s
publish_nightly	0s
publish_release	0s
nightly_documentation	0s
open_issue_on_failure	0s
	5h 39m 23s

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