Original commit message from CVS:
* gst/videotestsrc/gstvideotestsrc.c:
(gst_video_test_src_pattern_get_type),
(gst_video_test_src_set_pattern):
* gst/videotestsrc/gstvideotestsrc.h:
* gst/videotestsrc/videotestsrc.c: (gst_video_test_src_checkers1),
(gst_video_test_src_checkers2), (gst_video_test_src_checkers4),
(gst_video_test_src_checkers8):
* gst/videotestsrc/videotestsrc.h:
Add a bunch of exciting new checkers patterns.