RFC: Hybrid (wineserver / process-local) native semaphores (rev 3)

[Daniel Santos]

This revision corrects a few errors, incorrect return value in 
ReleaseSemaphore and a mistake in the wait when bWaitAll = TRUE (we 
still need a good test for that). I'm also adding some documentation to 
the ntdll-internal object management api and one more test to threadpool.

This will be the last revision of the posix (gnu nptl) -based 
implementation because it does *NOT* work on 32-bit programs when WoW 
64/32 is built due to this little bug in glibc 
(https://sourceware.org/bugzilla/show_bug.cgi?id=11651), but I wanted 
everything to be correct. It is expected to be bug-free for cases where 
the wine server and target program are the same ABI.