[win32k]

[win32k]
- Rewrite GetKeyState based on wine. Now it's results are based on whether or nor the message queue has processed a keyboard message and not the actual state of the keyboard.c
- TODO: ensure it works corectly and use this implementation in most other places in win32k when we need to check the state of a key. To ensure nothing breaks, this change affects only GetKeyState

svn path=/trunk/; revision=51295