Add windows templates for powershell and batch

[jonathanmorley]

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• [ ] I have reviewed the code of conduct.
• [ ] Per GitHub's Terms of Service, I am aware that I license my contribution under the same terms as this project's license, and that I have the right to license my contribution under those terms.

cc: @mbland

[coveralls]

Coverage decreased (-22.6%) to 72.434% when pulling 4d4d6d1ba4fa29dd641470588581b52b7d13a48f on jonathanmorley:windows-templates into b8d71406075bed5eea9ea575ec9547c7a4505d1a on mbland:master.