[PATCH] ntdll: Implement SystemBatteryState for Mac OS.

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=60781

Your paranoid android.


=== debian10 (64 bit WoW report) ===

ntdll:
threadpool.c:258: Test failed: WaitForSingleObject returned 258
threadpool.c:271: Test failed: WaitForSingleObject returned 0