Export TouchEventRejected as TouchRejected

This function is mostly correct for early reject usage. With a small
change to pass the client resource explicitly and making the
TouchOwnership event optional, it is usable for all rejection scenarios.
This change exports it for use outside Xi/exevents.c and modifies the
name accordingly.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>

include/exevents.h

@@ -323,6 +323,13 @@ SendEventToAllWindows(
         xEvent *               /* ev */,
         int                    /* count */);
 
+extern void
+TouchRejected(
+        DeviceIntPtr           /* sourcedev */,
+        TouchPointInfoPtr      /* ti */,
+        XID                    /* resource */,
+        TouchOwnershipEvent *  /* ev */);
+
 extern _X_HIDDEN void XI2EventSwap(
         xGenericEvent  *              /* from */,
         xGenericEvent  *              /* to */);