Fix OpenSSL include issue on Windows
Fix OpenSSL include issue on Windows

OpenSSL's Windows headers apparently require windows.h to be included
before including them. Yikes.

Reviewed-by: Simon McVittie <2b470b34502dbf3ba4bcc04ea7e64f4e0e104f33@collabora.co.uk>

noonien-d/wocky,freedesktop-unofficial-mirror/wocky,freedesktop-unofficial-mirror/wocky,freedesktop-unofficial-mirror/wocky,noonien-d/wocky,noonien-d/wocky