This delivers the rawinput messages to the correct process, regardless
of where the input was received.

As for now RIDEV_INPUTSINK is still not implemented, this only fixes
the case where input is injected in a background process and where it
should not receive rawinput -as in the test- or when cursor moves over
a background window and the foreground process should have received
rawinput messages.
Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>