[#144] Add Windows CI (AppVeyor) (#160)

* [#144] Add Windows CI (AppVeyor)

Resolves #144

* Do not build benchmarks, add badge

* Make co-log-benchmark not buildable on Windows

* Use chronos-1.1 where Windows works

* Don't build tutorials on Windows

Co-authored-by: Dmitrii Kovanikov <[email protected]>

Author: vrom911

README.md

@@ -2,6 +2,7 @@
 
 [![MPL-2.0 license](https://img.shields.io/badge/license-MPL--2.0-blue.svg)](https://github.com/kowainik/co-log/blob/master/LICENSE)
 [![Build status](https://img.shields.io/travis/kowainik/co-log.svg?logo=travis)](https://travis-ci.org/kowainik/co-log)
+[![Windows build](https://ci.appveyor.com/api/projects/status/github/kowainik/co-log?branch=master&svg=true)](https://ci.appveyor.com/project/kowainik/co-log)
 
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