sys/ximage/ximagesink.c: Add debug macros on functions.

sys/ximage/ximagesink.c: Add debug macros on functions.

Original commit message from CVS:
2005-11-22  Julien MOUTTE  <julien@moutte.net>

* sys/ximage/ximagesink.c: (gst_ximagesink_event_thread),
(gst_ximagesink_class_init): Add debug macros on functions.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_xvimage_new),
(gst_xvimagesink_xwindow_draw_borders),
(gst_xvimagesink_xvimage_put),
(gst_xvimagesink_xwindow_update_geometry),
(gst_xvimagesink_handle_xevents),
(gst_xvimagesink_get_xv_support),
(gst_xvimagesink_event_thread), (gst_xvimagesink_xcontext_get),
(gst_xvimagesink_xcontext_clear),
(gst_xvimagesink_get_format_from_caps),
(gst_xvimagesink_setcaps),
(gst_xvimagesink_change_state), (gst_xvimagesink_show_frame),
(gst_xvimagesink_buffer_alloc),
(gst_xvimagesink_set_xwindow_id),
(gst_xvimagesink_expose), (gst_xvimagesink_set_property),
(gst_xvimagesink_get_property), (gst_xvimagesink_finalize),
(gst_xvimagesink_init), (gst_xvimagesink_class_init):
* sys/xvimage/xvimagesink.h: Refactoring to handle aspect ratio,
expose while being PAUSED, out of data flow navigation events,
etc..