ext/ogg/gstoggdemux.c: lots of changes - mainly support for chained bitstreams, seeking, querying and bugfixes of course

Original commit message from CVS:
2004-01-29  Benjamin Otte  <in7y118@public.uni-hamburg.de>

* ext/ogg/gstoggdemux.c:
lots of changes - mainly support for chained bitstreams, seeking,
querying and bugfixes of course
* ext/vorbis/Makefile.am:
* ext/vorbis/vorbisdec.c:
* ext/vorbis/vorbisdec.h:
add vorbisdec raw vorbis decoder
* ext/vorbis/vorbis.c: (plugin_init):
register vorbisdec as PRIMARY, vorbisfile as SECONDARY
* gst/intfloat/Makefile.am:
* gst/intfloat/float22int.c:
* gst/intfloat/float22int.h:
* gst/intfloat/gstintfloatconvert.c: (plugin_init):
add float2intnew plugin. It converts multichannel interleaved float to
multichannel interleaved int. The name should probably be changed.
* gst/typefind/gsttypefindfunctions.c: (theora_type_find),
(plugin_init):
add typefinding for raw theora video so oggdemux can detect it.