Using zlib.h in test / license header

[Andreas Maier]

Hello,

i've ported a test from the ReactOS-Project to wine. The PatchBot-test 
failed because there is no zlib.h.

The test includes 2 zlib-compressed pdb-files. They are needed for the test.

PatchBot-Log: https://testbot.winehq.org/JobDetails.pl?Key=45310#k101

Isn't it possible to use zlib.h for tests or did i something wrong?

Btw.: (Maybe a silly question ..) Is it possible to keep the original 
license header of this file (from reactos-project)?

/Andy