Merge #24

24: Makefile: Add windows support r=stlankes a=mkroening

This makes it possible to further unify CI across different operating systems.

Co-authored-by: Martin Kröning <mkroening@posteo.net>
3 jobs for master in 4 minutes and 23 seconds (queued for 1 second)
Status Name Job ID Coverage
  Prepare
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  Build
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  Deploy
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