Add stubs for input shape functions.

Add stubs for input shape functions.

2006-02-20  Anders Carlsson  <andersca@imendio.com>

        * gdk/quartz/gdkdisplay-quartz.c:
        (gdk_display_supports_shapes):
        (gdk_display_supports_input_shapes):
        * gdk/quartz/gdkwindow-quartz.c:
        (gdk_display_warp_pointer):
        (gdk_window_input_shape_combine_mask):
        (gdk_window_input_shape_combine_region):
        (gdk_window_set_child_input_shapes):
        (gdk_window_set_accept_focus):
        (gdk_window_merge_child_input_shapes):
        Add stubs for input shape functions.