Recent versions of Native Instruments Kontakt 7 introduced some additional HiDPI features. To do this, Kontakt calls 2 functions in `user32.dll` that Wine hasn't implemented yet: `GetWindowDpiHostingBehavior` and `SetThreadDpiHostingBehavior`. This patch adds stubs for these 2 functions and apparently that's enough for Kontakt.
This is my first contribution to Wine, I'm not 100% sure if everything is like it should be.
-- v2: user32: Add stubs for GetWindowDpiHostingBehavior and SetThreadDpiHostingBehavior