Windows support

[jcooklin]

The experience building and using snap on Windows should be as good as it is on other supported platforms.

We need to

• State the supported versions
• Ensure it builds

Things to avoid

• anything MSFT has EOL'd

[mbbroberg]

This was passed for Beta in favor of other features. Removing from milestones (since we're not using them) and looking forward to getting this released.

[kylebrandt]

As an aside, we build scollector to have Linux and Windows monitoring both be primary systems for the agent. So we have a fair amount of WMI collection built into scollector which is in Go.

Steal at will: https://github.com/bosun-monitor/bosun/tree/master/cmd/scollector/collectors (see stuff that *_windows.go)

[mbbroberg]

This is awesome @kylebrandt. Thank you for sharing! cc @intelsdi-x/snap-maintainers

[mathewlk]

Our group currently has a working Snap executable for Windows, as well as a server testing environment, and are working on a build script (to automate the Snap build process on Windows), along with a few different plugins (Perfmon - See referenced issue 1175 above, Sysinternals, and Active Directory). We plan on having them completed by the end of March at the latest and will keep this issue updated with any progress made.