Build on windows

[dsisnero]

Can you make it so the package builds on windows?

[k0kubun]

Sure, I'm open to merging a contribution to support Windows. I don't have a Windows environment to develop/test the feature, so it'd be nice if somebody who would use the feature files a PR for it.

[dsisnero]

do you know of an equivalent mruby module to mruby-etc that does the same thing for windows?