[NtUser]

[NtUser]
- Fix the results from the new API CreateWindowEx tests. Message sequence and isolating each job Destroy and Free perform will come later. Refer to CORE-8703. This may not fix the crash while in wine test User32:msg.c.
- Dedicated to Thomas Faber.
- Fix build window list using threads. The link list works okay for locking but for tracking thread windows, use the snapshot method.

svn path=/trunk/; revision=66234